Magnetic field Essays & Research Papers

Best Magnetic field Essays

• Magnetic Fields - 1028 Words
﻿Magnetic Fields PHY 114 Lab Report 10/23/2013 Abstract: The purpose of this experiment was to surrounding a magnet there is a magnetic field. The magnetic field is analogous to the electric field that exists in the space around electric charges. Like the electric field, the magnetic field has both a magnitude and a direction. The direction of the magnetic field at any point in space is the direction indicated by the north pole of a small compass needle placed at that point. Since...
1,028 Words | 4 Pages
• Magnetic Fields - 1485 Words
Magnetic Fields Introduction: This lab was completed to investigate and map the magnetic field pattern of a single straight conductor by comparing it with the earth’s magnetic field. Quantitatively, the purpose of this lab was to determine the horizontal component of the earth’s magnetic field. Magnetic field and electric currents are naturally closely related because anytime a current runs through a wire, a magnetic field around the wire is created. These magnetic fields can be expressed...
1,485 Words | 5 Pages
• Magnetic Field - 360 Words
History of magnetism Early Discoveries In the early discoveries people of ancient greece and china discovered a lodestone (the natural form of a magnet). Through experiments they found out that a lodestone would always point in a north-south direction if it was allowed to rotate freely. They applied this charistic of the lodestones to navigation, fortune telling, and a guide for building. North and south poles In 1263 Pierre de maricourt a french solidure mapped the magnetic field of a...
360 Words | 2 Pages
• E401 MAGNETIC FIELDS AND MAGNETIC FORCE
﻿GUIDE QUESTIONS 1. What happens to the distribution of magnetic flux lines when the iron ring was placed in between the U-magnets? The distribution of magnetic flux lines when the iron ring is placed in between the magnets, the iron ring is included in the distribution of flux lines. Instead of connecting to the other pole, the ring affects its distribution and some of it is attracted to the iron ring. 2. How does changing the current affect the magnetic force on a wire suspended in a...
570 Words | 5 Pages
• All Magnetic field Essays

• Magnetic Field Lines - 1153 Words
Date: 13.10.2012 Student Exploration: Magnetism Vocabulary: attract, bar magnet, ferromagnetic, magnetize, North Pole, repel, South Pole Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. What happens when you place two magnets close together? It depends on the sides when the two North Pole sides are meant then they get pulled together. And if it should be the opposite way then they will move each other away. 2. What objects do magnets stick to? Make a...
1,153 Words | 6 Pages
• lab report Magnetic field
﻿ PHYSICS FOR SCIENTIST AND ENGINEERS LABORATORY EXPERIMENTS EXPERIMENT 5 (Assignment) EXPERIMENT 5 – MAGNETIC FIELDS OBJECTIVES 1. To study the workings of magnetic fields. 2. To determine the North and South poles of magnets and magnetic field lines. 3. To understand the attractive and repulsive forces acting on it. INTRODUCTION Electric current is defined as the rate at which charge flows through a surface. As with all quantities defined as a...
1,381 Words | 7 Pages
• Magnetic Field and Scores - 766 Words
Part III PHYSICS HSE II Time:2Hours Max:60 Scores 1. Three identical charges each +q are placed at the corners of an equilateral triangle of side d cm. Calculate the force on a +ive charge +2q at the centroid of the triangle. 2 2.If the earth is supposed to be a metallic sphere,its capacity will be nearly (a) 700pf (b) 700 microfarad (c) 700f (d) 6.4 X10^6 f 1score 3. write the relation between dielectric constant and electric susceptibility. 1score 4. A box encloses an electric dipole...
766 Words | 3 Pages
• Magnetic Field and Flux Density
hi 1. Which of these is not correct as a basic property of electric charges? (a) Total charges in an insulated system is invariable (b) A charged body is electrically unstable (c) * A charged body has equal number of positive and negative charges (d) Positively charged body is deficient of electrons x+q1+q2 = 2 q1 2.Calculate the distance x between charges q1 and q2 shown, given the repulsive force between them as 1.2 x 10-4 N, take the permittivity of...
14,553 Words | 86 Pages
• Magnetic Field and Instructor Explanation
﻿ Grade Details There are 2 pages in this exam: Page: 1 2 1. Question: (TCO 4) A body moving with an acceleration having a constant non-zero magnitude must experience a change in: Your Answer: Speed acceleration velocity CORRECT weight Instructor Explanation: Remediation: Knight, Chapter 1.6 Points Received: 6 of 6 2. Question: (TCO 4) A ball is dropped from a 250 foot building. How long before the ball hits the...
6,478 Words | 105 Pages
• Tut Magnetic Fields - 293 Words
1 Tutorial Sheet : Magnetostatic Fields Date of Upload : Oct 16, 2014 Learning Objectives: 1) Introduction with the magnetostatic fields. 2) Applications of Ampere’s circuit law and Biot-Savart’s law . 3) Solving boundary value problems for magnetic fields. Attempt the following problems 1) Derive the expression of magnetic field intensity at a given point due to infinite sheet of current using Ampere’s circuit law. − → − → → 2) Plane y=1 carries current K = 50− a z mA/m. Find H at (0, 0, 0)...
293 Words | 3 Pages
• Magnetism: Magnetic Field Strength
﻿Name ____________________________________ Magnetism Go to http://phet.colorado.edu/simulations/sims.php?sim=Magnets_and_Electromagnets and click on Run Now. Part I: 1. Move the compass slowly along a semicircular path above the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle. The compass starts to spin and the red part of the arrow moves around until it is back at its resting spot. 2. What do you...
802 Words | 4 Pages
• Physics 72: Magnetic Field
27 Magnetic Field and Magnetic Forces J. Manuel Physics 72 1st Sem AY13-14 1 27 Fundamental nature of Magnetism Magnetism Magnetic Field Magnetic Field Lines and Magnetic Flux Motion of Charged Particles in Magnetic Field Magnetic Force on a Current-Carrying Conductor Force and Torque on a Current Loop Interaction of moving electric charges Magnetic forces arise in two stages: 1. Moving charge or a collection of moving charges produces a magnetic field. 2. Current or...
4,162 Words | 29 Pages
• Magnetic Field and Differential Form
Ampere's Law The line integral of the magnetic flux around a closed curve is proportional to the algebraic sum of electric currents flowing through that closed curve; or, in differential form curl B = J. This was later modified to add a second term when it was incorporated into Maxwell's equations. Archimedes' Principle A body that is submerged in a fluid is buoyed up by a force equal in magnitude to the weight of the fluid that is displaced, and directed upward along a line through the...
652 Words | 3 Pages
• Physics: Magnetic Field and Direction
Logged in as Jolie Cizewski, Instructor Help Log Out RUPHYS2272012 My Courses Course Settings ( RUPHYS2272012 ) University Physics with Modern Physics, 13e Young/Freedman Course Home Assignments Roster Gradebook Item Library Instructor Resources eText Study Area H9 Chapter 28: Sources of Magnetic field, Ampere's law, Magnetic materials Overview Summary View Diagnostics View Print View with Answers [ Edit ] H9 Chapter 28: Sources of Magnetic field,...
2,596 Words | 12 Pages
• Earths Magnetic Field - 1398 Words
Earth’s Magnetic Field Introduction Earth's magnetic field is one of the world's most complicated features. It started to be observed in 1845 by a scientist named Carl Friedman Gauss (Sarfati). The magnetic field is generated inside of the earth's core and there are many scientists who still debate over how it was first created. There are also many arguments about the many changes that the field has gone through in it's existence. These arguments are mostly either for a young-earth model...
1,398 Words | 4 Pages
• Magnetic Field and Strongest Electromagnet
Explain what it means when we say a substance is magnetic. A substance can be picked up by a magnet. Discuss the relationship between electric and magnetic fields. The magnetic field will be perpendicular to the electric field and vice versa Before you begin your lab, you need to form a hypothesis that reflects which material, voltage, and number of winds you think will produce the strongest electromagnet. Record your hypothesis as an if then statement. If I use copper, 100 volts, large...
301 Words | 3 Pages
• Electromagnets: Small Magnetic Field
Electromagnets: The basic idea behind an electromagnet is extremely simple: By running electric current through a wire, you can create a magnetic field. By using this simple principle, you can create all sorts of things, including motors, solenoids, read/write heads for hard disks and tape drives, speakers, and so on. In this article, you will learn exactly how electromagnets work. You will also have the chance to try several experiments with an electromagnet that you create yourself!...
353 Words | 2 Pages
• Maglev: Magnetic Fields - 4383 Words
.INTRODUCTION Magnetic levitation is the latest in transportation technology and has been the interest of many countries around the world. The idea has been around since 1904 when Robert Goddard, an American Rocket scientist, created a theory that trains could be lifted off the tracks by the use of electromagnetic rails. Many assumptions and ideas were brought about throughout the following years, but it was not until the 1970’s that Japan and Germany showed interest...
4,383 Words | 14 Pages
• Magnetic Field and Electromagnet - 1297 Words
Electromagnet (Simple Features and Uses) An Investigatory Project Presented to Basic Education Department University of Perpetual Help GMA In Partial Fulfilment for The Requirements in Physics By: Anjanette L. Pascual Coleen Rose S. Saturnino Veverley Jayris M. Ochavo February 26, 2010 Mr. Lemuel F. Valdez Teacher Table of Contents I. Introduction A. Scope and Delimitation II. Statement of the Problem III. Definition of Terms IV. Related...
1,297 Words | 6 Pages
• Magnetic Field and Wire - 985 Words
﻿Homework: Topic8: Sources of Magnetic Fields [Chap. 19] Explanation: Problems are divided into two groups. Numbers in parentheses, e.g. (10) are Exercises. Relatively simple applications of basic definitions and basic laws. These are for student practice. Numbers in brackets, e.g. [10], are assigned problems. These are problems similar in level of difficulty to test problems. Numbers in curly brackets, e.g. {10} are ‘challenging’ problems. Exercises: (1) We want to produce a magnetic field...
985 Words | 4 Pages
• Magnetic Fields Writing Assignment
10/13/13 Physics 202-3 The magnetic fields we observed in the first exercise were really well defined by the metal filings sprinkled onto the paper covering the magnet, the lines were then sketched onto the papers attached to this report. From these sketches we find that the magnetic fields change when more than one magnetic source such as from another magnet. When two magnets were placed side by side with north poles near each other and south poles near each other we observed that the fields...
380 Words | 1 Page
• Magnetic Field and Choices - 1890 Words
Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A floating leaf oscillates up and down two complete cycles in one second as a water wave passes by. The wave's wavelength is 10 meters. What is the wave's speed? A) 2 m/s B) 40 m/s C) 10 m/s D) 20 m/s E) more than 40 m/s 2) The Doppler effect is characteristic of A) light waves. B) sound waves. C) water waves. D) all of the above choices E)...
1,890 Words | 7 Pages
• Magnetic Field Strength Determination on a Solenoid and Magnetic Field Mapping on Bar Magnets
﻿Magnetic Field Strength Determination on a Solenoid and Magnetic Field Mapping on Bar Magnets Sims, Jon Xyrus College of Engineering, University of the Philippines, Diliman, Quezon City Abstract Magnetic fields are important in a vast array of applications, as well as its natural occurrence in many different phenomena. This experiment aims to determine the dependence of its strength on both a changing current, and for a solenoid, changing number of turns and determine through linear...
2,057 Words | 7 Pages
• Magnetic Field and Cathode Ray Tube
Experiment 4 Measurement of e by Thomson's bar magnet method. m Apparatus: Cathode ray tube (CRT) with power supply unit, one pair of bar magnets, high resistance voltmeter, magnetometer, stopwatch. Purpose of experiment: e To measure the specific charge, i.e. charge to mass ratio   , of an electron using m Thomson's bar magnet method. Basic methodology: Electrons in a CRT are deflected in the vertical direction by applying a potential between the vertical deflection plates of the CRT....
2,670 Words | 13 Pages
• Affect of Earths magnetic field on people
﻿ Effect of The Earth’s magnetic field By X 9h Earth’s Magnetic Field Introduction Our Earth is a huge bar magnet tilted 11 degrees from the spin axis of the Earth, with geographic north pole being earth’s magnetic south pole and vice versa. Similar to how a magnet has a magnetic field surrounding it, our Earth also has its own magnetic field. The earth’s magnetic field is formed in the earth’s core due to a process known as the dynamo effect. According to dynamo...
1,737 Words | 5 Pages
• Magnetic Field and Average Voltage- Sum
﻿Lab #11 Faraday's Law of induction Purpose: To prove Faraday's Law of Induction using an oscillating wand which swings through a magnetic field. In addition, we studied the conversion of mechanical energy to electrical energy. Questions: 1. What are the possible errors in this experiment? There are a variety of sources of error which may have affected the results of this experiment. There could have been an error in the setup of the Rotary Motion setup or its setup within the Logger Pro...
528 Words | 2 Pages
• Physics Electron Gun Magnetic Field
October 30, 2014 Jordan Hollenbeck Juhn Borruel Electron Gun - Effects of a Magnetic Field Purpose: The objective of this experiment is to study the motion of an electron in a magnetic field and to establish (show/verify) a relationship between the magnetic strength and the distance the electrons are deflected. Theory and Procedure: The electron gun is an instrument that consists of an electron source (which emits electrons and focus the stream into a beam), a magnetic coil (which uses a...
900 Words | 12 Pages
• Magnetism: Magnetic Field and North Pole
The ancient Greeks and Chinese basically discovered magnetism. What is magnetism? Magnetism is a force that acts at a distance to strongly attract iron, nickel and cobalt. The ancient Greeks and Chinese found out about some rare stones that attracted metal. They called these "lodestones." They discovered that with these lodestones, if they stroked a steel needle will point north and south. This was the beginning of the magnetic compass. The magnetic compass was used by Columbus when he crossed...
615 Words | 2 Pages
• Magnetic field screening and mirroring in graphene
Magnetic ﬁeld screening and mirroring in graphene Mikito Koshino, Yasunori Arimura, and Tsuneya Ando arXiv:0903.1690v2 [cond-mat.mes-hall] 17 Jun 2009 Department of Physics, Tokyo Institute of Technology, Tokyo 152-8551, Japan (Dated: June 17, 2009) The orbital magnetism in spatially varying magnetic ﬁelds is studied in monolayer graphene within the eﬀective mass approximation. We ﬁnd that, unlike the conventional two-dimensional electron system, graphene with small Fermi wave number...
3,190 Words | 16 Pages
• Investigation of Magnetic Fields by Search Coil
Physics Lab Report – C15 Title: Investigation of magnetic fields by search coil Objective: To use a search coil and a CRO to investigate the magnetic fields generated by alternating currents through a straight wire and a slinky solenoid. Apparatus: |Search coil 1 |Slinky solenoid 1 | |CRO 1...
1,834 Words | 6 Pages
• LOW-FIELD MAGNETIC HYSTERESIS IN IRON, COBALT, NICKEL AND STEEL
Journal of Magnetism and Magnetic Materials 65 (1987) 71-75 North-Holland, Amsterdam 71 LOW-FIELD MAGNETIC H Y S T E R E S I S IN IRON, COBALT, NICKEL AND S T E E L G.H.J. W A N T E N A A R , S.J. CAMPBELL, D.H. C H A P L I N and G.V.H. WILSON Department of Physics *, University College, University of New South Wales, A ustrafian Defence Force Academy, Campbell A CT 2600, A ustrafia Received 15 August 1986 Spheroidal samples of high purity iron, cobalt and nickel and carbon steel...
1,552 Words | 11 Pages
• Magnetic Particle - 4019 Words
Magnetic particle inspection (MPI) - Is a non-destructive testing (NDT) process for detecting surface and slightly subsurface discontinuities in ferroelectric materials such as iron, nickel, cobalt, and some of their alloys. The process puts a magnetic field into the part. The piece can be magnetized by direct or indirect magnetization. Direct magnetization occurs when the electric current is passed through the test object and a magnetic field is formed in the material. Indirect magnetization...
4,019 Words | 13 Pages
• Magnetic Properties - 886 Words
Magnetic Properties of Solids Magnetic Properties Magnetic (with unpaired electron) Materials Non-magnetic or diamagnetic (electrons all paired up) Paramagnetic Ferromagnetic Antiferromagnetic Ferrimagnetic Magnetic Behavior B = μH B = μ0H + μ0M Induction generated Induction generated by the field by the sample B: magnetic flux density μ: permittivity (m0: free space) H: magnetic field M: Magnetization χ = M/H χ: magnetic susceptibility B = μ0H + μ0Hχ B = μ0H (1 + χ) =...
886 Words | 6 Pages
• Magnetic Susceptability - 1715 Words
Magnetic Susceptability Michael J. Horan II Abstract: The change in weight induced by a magnetic field for three solutions of complexes was recorded. The change in weight of a calibrating solution of 29.97% (W/W) of NiCl2 was recorded to calculate the apparatus constant as 5.7538. cv and cm for each solution was determined in order to calculate the number of unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)26(H20) had 4 unpaired electrons, KMnO4 had zero unpaired electrons,...
1,715 Words | 6 Pages
• Magnetic Materials - 564 Words
Research on Magnet materials • Alnico Magnets Alnico magnet alloy is largely comprised of Aluminum, Iron, Cobalt and Nickel. Alnico is a moderately expensive magnet material because of the Cobalt and Nickel content. Alnico magnet alloy has high maximum operating temperature and a very good corrosion resistance. Some grades of Alnico alloy can operate upwards of 1000C. Magnets made with this alloy are available in a variety of grades and dimensions and they are usually cast. Alnico magnet...
564 Words | 2 Pages
• Magnetic Acceleration - 1255 Words
Dylan Headrick Honors Physics Mr. Gillies December 15th, 2012 Magnetic Acceleration Magnets are one of those few wonders of science. It used to be thought that they were magic and could cure any ailment. Though they can’t cure cancer, magnets still have thousands of different uses in electronics, machining, transportation, and toys. In all of these uses, there are at least ten that rely on magnetic acceleration, the acceleration of an object caused by a string of electromagnets pushing and...
1,255 Words | 3 Pages
• Magnetic Flux - 348 Words
The magnetic interaction is described in terms of a vector field, where each point in space (and time) is associated with a vector that determines what force a moving charge would experience at that point (see Lorentz force). Since a vector field is quite difficult to visualize at first, in elementary physics one may instead visualize this field with field lines. The magnetic flux through some surface, in this simplified picture, is proportional to the number of field lines passing through that...
348 Words | 1 Page
• Magnetic Separation - 1790 Words
1. Magnetic Separation 1.1 Introduction Ancient people had already practiced the filtration process in the water treatment long time ago. There is evidenced prove it by the Egyptian and Sanskrit inscription, water was treated using as early as 200 B.C [1]. Perhaps filtration was discovered and used early in the earth removes contaminants from water, by taking advantage of attractive forces between particulate matters suspended in the water and the surface of the filter media....
1,790 Words | 6 Pages
• Magnetic Leviation - 6948 Words
I DESIGN OF FRICTIONLESS TRAIN SYSTEM USING MAGNETIC LEVITATION A Project report submitted in partial fulfillment of the requirement for the award of degree of BACHELOR OF TECHNOLOGY IN MECHANICAL ENGINEERING Submitted By P. Rekha Punnami - 09241A0390 N. Sahithi Reddy - 09241A0395 Under the Guidance of Dr. ADAPA RAMA RAO Professor & Dean Department Of Mechanical Engineering Gokaraju Rangaraju Institute of Engineering and Technology Bachupally, Hyderabad – 500...
6,948 Words | 31 Pages
• Magnetic Force - 621 Words
Latihan 5: Magnetism Magnetic Fields 1. An electron gun fires electrons into a magnetic field directed straight downward. Find the direction of the force exerted by the field on an electron for each of the following directions of the electron’s velocity: (a) horizontal and due north; (b) horizontal and 30° west of north; (c) due north, but at 30° below the horizontal; (d) straight upward. 2. (a) Find the direction of the force on a proton moving through the magnetic fields in Figure...
621 Words | 3 Pages
• Magnetic Moulding - 1454 Words
Alagappa Chettiar College of Engineering & Technology Government of Tamilnadu Karaikudi – 630004, Tamilnadu. [pic] [pic] -BY HARI PRASAD.L (hariprasadmech@gmail.com) PONRAJ JOHN KENNEDY.A (jkmech@gmail.com) CONTACT : Third Year Mechanical Engg, A.C.College of Engg & Tech. Karaikudi-630004. ( 9894984464. ABSTRACT...
1,454 Words | 7 Pages
• Magnetic Generator - 927 Words
A generator works by a magnetic field inducing a voltage into a coil of wire. Important points to note are that the voltage increases as the number of turns of wire on the coil becomes larger and the size of the coil and the strength of the magnetic field increase. The magnetic field (or the coil) needs to be in constant motion to produce/induce the electricity into the coil. This can be done by moving the magnet or by moving the coil - the effect is the same. The coil (or the magnet) needs to...
927 Words | 3 Pages
• Electric Fields - 549 Words
Introduction and Experimental Goal: An electric field surrounds all electrically charged particles. With electric fields, one can determine the effects of all of the charges in the environment. In this lab entitled “Electric Fields and Potential Mapping”, the main goal obtained was to examine and deliberate the effects of an electric field and electric potential. Examples of some effects of electric fields include resultant forces, changes in motion, changes in current flow, etc. By using...
549 Words | 2 Pages
• Types and Applications of Magnetic Separator
1, according to the magnetic source, the magnetic separator can be divided to permanent magnetic separator and electromagnetic separator. 2, according to the strength of magnetic field, it can be divided into: (1) Weak magnetic separator, the surface magnetic strength HO=72-136 KA/m, magnetic force HgradH= (2.5-5.0) 1011 A/m. (2) Middle magnetic separator, the surface magnetic strength HO=160-480 KA/m; (3) Strong magnetic separator, the surface magnetic strength HO=480-1600 KA/m,...
415 Words | 2 Pages
• Magnetic Effects of Electric Current
Magnetic effect of electric current is one of the major effects of electric current in use, without the applications of which we cannot have motors in the existing world. A current carrying conductor creates a magnetic field around it, which can be comprehended by using magnetic lines of force or magnetic field lines. The nature of the magnetic field lines around a straight current carrying conductor is concentric circles with centre at the axis of the conductor. The direction of the magnetic...
1,420 Words | 4 Pages
• Magnetic Effect of Electric Current
CHAPTER - 13 MAGNETIC EFFECTS OF ELECTRIC CURRENT 1) Magnetic field and Field lines:- a) Magnetic field :- The region around a magnet where the force of attraction or repulsion can be detected is called magnetic field. Magnetic field around a magnet can be detected by using a magnetic compass. b) Magnetic field lines:- Magnetic field lines are the paths around a magnet along which the north pole of a magnetic compass needle tends to move. The magnetic field lines...
1,342 Words | 5 Pages
• Magnetic Abrasive Finishing Process
Contents S No Major Page No 1 Introduction 1 2 Process details 1 3 Mechanism of Material removal 5 4 Process Parameters Analysis 6 5 Conclusions 7 6 Advantages 8 References 9 Magnetic Abrasive Finishing (MAF) Process Harry P. Coats first patented MAF in 1938. Although US originate this idea, most of later period development is done by USSR + Bulgaria. Japanese explore the technology for polishing purpose. Other countries in this field are: India, CIS, England, France, and...
2,408 Words | 8 Pages
• Immobilization of Amylase on Magnetic Nanoparticles
Abstract α-amylase was immobilized covalently on iron oxide magnetic nanoparticles. The synthesis of magnetic nanoparticles was done by the coprecipitation conventional method. The chemical composition and particle size of the synthesized particles was confirmed via X-ray diffraction. Tyrosine, Lucien and chitosan and glutaraldehyde were investigated to make a covalent binding between the iron oxide magnetic core and the immobilized enzyme. Immobilization using chitosan and glutaraldehyde...
3,925 Words | 15 Pages
• Magnetic Abrasive Machining.Doc - 387 Words
Magnetic abrasive machining is a newlydeveloped technology for super finishing machining duringthe latest decade. The magnetic abrasive materials are putinto the space between S-pole and N-pole, which areattracted by the S、N poles and the machining part, soforming a flexible“abrasive material brush”along thedirection of the magnetic line of force. Under this conditionthe machining part rotates and oscillates simultaneously,there by the burrs will be abraded and the superficial finishwill be...
387 Words | 1 Page
• Magnetic Abrasive Finishing - 2067 Words
INTERNAL MAGNETIC ABRASIVE FINISHING FOR AUSTENITIC STAINLESS STEEL TUBES BENT USING HIGH FREQUENCY INDUCTION BENDING H. Yamaguchi*1, T. Shinmura*2, H. Yokoo*2, T. Aizawa*1 * Faculty of Engineering, Utsunomiya University, Tochigi, Japan *2 Graduate School of Engineering, Utsunomiya University, Tochigi, Japan 1 Abstract This paper examines the applicability of magnetic abrasive finishing to the internal finishing of large–sized bent tubes produced by high frequency induction bending....
2,067 Words | 8 Pages
• Magnetic Abrasive Finishing - 3355 Words
Effect of the Process Parameters on the Surface Roughness during Magnetic Abrasive Finishing Process on Ferromagnetic Stainless Steel workpieces Rajwinder Singh Gill Mechanical Engineering Department, Chandigarh Engineering College, Landran, Mohali, India Contact No: 9781992727 Email: - rajgill4u@yahoo.com ABSTRACT Study of new and cost effective finishing processes has always been an area of keen interest to overcome the difficulties of existing finishing process. Magnetic Abrasive...
3,355 Words | 23 Pages
• Development Background of Magnetic Separator
The Magnetic Separator can separate raw materials with different magnetic rigidities. The machine works under the magnetic force and machine force. The Wet Magnetic Separator can separate raw materials with different magnetic rigidities. The machine works under the magnetic force and machine force. Magnetic Separators are designed to recover ferromagnetic materials. The China Magnetic Separators are available in cyclic design with process vessel diameters smaller than 3mm. Magnetic Separator is...
360 Words | 1 Page
• Determination of the Earth’s Magnetic Field Configuration by Using Bar Magnets and Iron Filings and Measurement of Its Intensity with Tangent Galvanometer
Page 1 of 2 Staple this form to the manuscript that you reviewed. These two are to be submitted with the final version. Reviewer’s Code Name: Phenylalanine ^_^ Section: U-3L Date: September 12, 2012 Title of Paper Reviewed: Determination of the Earth’s Magnetic Field Configuration by using Bar Magnets and Iron Filings and Measurement of its Intensity with Tangent Galvanometer Author(s) Code Name: Shiela Grace V. Ramirez and Aurea Ellaine S. Mallari Here are some...
1,111 Words | 4 Pages
• Stokes Problem of a Convective Flow Past a Vertical Infinite Plate in a Rotating System in Presence of Variable Magnetic Field
International Journal of Applied Mathematical Research, 2 (3) (2013) 372-386 ©Science Publishing Corporation www.sciencepubco.com/index.php/IJAMR Stokes problem of a convective flow past a vertical infinite plate in a rotating system in presence of variable magnetic field Mutua, N.M*, Kinyanjui, M.N, Kwanza, J.K Taita Taveta University College Jomo Kenyatta University of Agriculture and Technology Jomo Kenyatta University of Agriculture and Technology *Corresponding author E-mail:...
3,903 Words | 15 Pages
• Magnetic Sensors and Their Applications
IEEE SENSORS JOURNAL, VOL. 6, NO. 3, JUNE 2006 631 Magnetic Sensors and Their Applications James Lenz and Alan S. Edelstein Abstract—Magnetic sensors can be classiﬁed according to whether they measure the total magnetic ﬁeld or the vector components of the magnetic ﬁeld. The techniques used to produce both types of magnetic sensors encompass many aspects of physics and electronics. Here, we describe and compare most of the common technologies used for magnetic ﬁeld sensing. These include...
5,063 Words | 15 Pages
• Magnetic Storm & Diamonds - 692 Words
Magnetic Storm This video is about the Earth’s magnetic force and its wavering. The molten iron in the earth creates the magnetic force around the earth. The magnetic force protects the earth, making it possible for life to exist on the planet, unlike other planets with weaker magnetic forces. Recently, though, scientists have discovered that the magnetic field seems to be faltering. The magnetic force starts near the South Pole and extends around the earth close to the North Pole and...
692 Words | 2 Pages
• Design of Electro Magnetic Gripper
ELECTRO MAGNETIC GRIPPER | HARDWARE PROJECT | | ACKNOWLEDGEMENT: We would like to take opportunity to express our humble gratitude to Mr. Denis ashok S under whom we executed this project. His constant guidance and willingness to share his vast knowledge made us understand this project and its manifestations in great depths and helped us to complete the assigned tasks. And also we would like to thank Mr. Pandivelan C who gave this opportunity for us. ABSTRACT:...
1,232 Words | 5 Pages
• Pseudoscience: Magnetic Therapy - 1068 Words
Pseudoscience refers to research that appears to be science but that lacks some of the underlying key aspects. Often, these include components such as submitting publications for peer review, performing research studies to gather results, and repeating these studies to find similar results. The problem of separating science from pseudoscience generally a difficult one because of the difficulty of defining science. Most scientists would agree that in order for a hypothesis to be scientific, it...
1,068 Words | 3 Pages
• Magnetic Separator Characters Introduction
Magnetic seperating production line mainly consists of jaw crusher, cone crusher, circular vibrating screen,rod mill, spiral classifier, hydrocyclone or high frequency fine screen, magnetic separator, flotation machine, thickener, filter equipment, etc. It can be composed of three types according to its magnetic field strength, respectively is in the weak magnetic separator, magnetic separator and the strong magnetic separator. Three types of magnetic separator have different magnetic field...
356 Words | 2 Pages
• Magnetic Force on a Moving Charge
﻿Lab V, Problem 8: Magnetic Force on a Moving Charge John Greavu Partners: Hannah Eshenaur and David Sturg August 15, 2013 Physics 1302W, Professor: John Capriotti, TA: Barun Dhar Objective In order to improve the design of an electron microscope, we attempted to use a magnetic field to control the electron beam. Utilizing a cathode cay tube (CRT), we oriented a magnetic field perpendicular to the axis of the CRT’s electron beam. From previous experience, we decided on using Helmholtz coils...
1,516 Words | 7 Pages
• Solving the Problem of the Magnetic Separator
The magnetic separator is characterized by a turbulent magnetic field and high separation factor, advanced structure, light weight, reliable operation and convenient maintenance. The magnetic separator is very suitable for the districts that are short of water so that water resource may be saved and ore dressing coasts may be reduced. It develops a new way for mining and utilization of magnetite. The customers often encounter problems in the use of magnetic separator , such as motor overheating...
359 Words | 1 Page
• Electro Magnetic Induction- Theraja
C H A P T E R Learning Objectives ➣ Relation Between Magnetism and Electricity ➣ Production of Induced E.M.F. and Current ➣ Faraday’s Laws of Electromagnetic Induction ➣ Direction of Induced E.M.F. and Current ➣ Lenz’s Law ➣ Induced E.M.F. ➣ Dynamically-induced E.M.F. ➣ Statically-induced E.M.F. ➣ Self-Inductance ➣ Coefficient of Self-Inductance (L ) ➣ Mutual Inductance ➣ Coefficient of Mutual Inductance ( M ) ➣ Coefficient of Coupling ➣ Inductances in Series ➣ Inductances in Parallel 7...
10,718 Words | 29 Pages
• Active Magnetic Bearings - 3643 Words
﻿HISTROY The evolution of active magnetic bearings may be traced through the patent issued in this field. Earlier patents for magnetic suspensions can be found but are excluded here because they consist of assemblies of permanent magnets of problematic stability per Earns haw’s Theorem. Early active magnetic bearing patents were assigned to Jesse beams at the university of Virginia during World War II and are concerned with ultracentrifuges for purification of the isotopes of various elements...
3,643 Words | 12 Pages
• Concept and Analogies of Magnetic Circuit
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4,531 Words | 15 Pages
• Magnetic Abrasive Finishing (Maf)
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• Force Field Analysis - 549 Words
Force Field Analysis This problem solving and decision making tool is offered to you from Bolero Associates. Here’s what you get: Ø An explanation of the tool and how to use it Ø An example Ø A blank template for you to use or distribute What it is A Force Field Analysis (Lewin 1951) is widely used tool in change management and process improvement circles. This tool is used, typically in a brainstorming session, to focus on the DRIVING FORCES in the CURRENT SITUATION and the RESTRAINING FORCES...
549 Words | 2 Pages
• THE RELATIONSHIP OF ELECTRIC FIELD INTENSITY
﻿ THE RELATIONSHIP OF ELECTRIC FIELD INTENSITY AND ITS DISTANCE FROM THE CHARGED OPOINT PHYS-232 JIANSONG HE GROUP: Abstract This experiment was performed to find the electric field strength from different distance to the charged point. The field strength was determined statically, by measuring its electrical potential when subjected to loading, and dynamically, by measuring the electrical potential at different location on the conductive paper. The electrical potential was measured...
477 Words | 3 Pages
• The Main Purpose of Magnetic Separation Machine
The magnetic separator is one of commonly used preparation equipments in magnetic separation factory. It has dry and wet two types. According to types of magnets, it can be divided into permanent magnet type and electromagnet type. It is also can be divided into strong magnet type, middle magnet type and weak magnet type according to the magnetic field strength. Different magnetic separators have different characteristics and performance. The common things have magnetite iron ore (belong to...
437 Words | 2 Pages
• Working Principle of Permanent Magnetic Separator
The Magnetic Separator can separate raw materials with different magnetic rigidities. The machine works under the magnetic force and machine force.Magnetic Separators are designed to recover ferromagnetic materials. The separators are available in designs and sizes to provide solutions for all applications. The heart of each separator is the magnetic system with its unique design, which has a proven record of high efficiency. Slurry magnetic separator (magnetic the separator) to mine box into...
422 Words | 2 Pages
• Magnetic Levitation Train: Project Report
Magnetic Levitation Train Final Report By: Dusty Funk & Kyle Getsla Project Advisor: Dr. Anakwa Date: May 12, 2006 Bradley University Department of Electrical and Computer Engineering 1 Abstract The objective of this project is to create a laboratory scale magnetic levitating train model using Inductrack technology developed by Dr. Richard Post from Lawrence Livermore National Labs, Previous work by Paul Friend is discussed as well as the physics associated with Inductrack....
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• Friction less Electro magnetic braking
﻿ CONTENTS 1. INTRODUCTION 2. CONSTRUCTION 3. WORKING PRINCIPLE 5 .ENGAGEMENT TIME 6. BURNIHING 7. TORQUE 8. OVER EXCITATION 9. WEAR 10. TYPES OF ELECTROMAGNETIC BRAKES 11. ADVANTAGES 12. DIS ADVANTAGES 13. CONCLUSION 14. REFERENCES 1. INTRODUCTION Electromagnetic brake Electromagnetic brakes operate electrically, but transmit torque mechanically. This is why they used to be referred to as electro-mechanical brakes. Over the years, EM...
3,649 Words | 13 Pages
• Optimization of Magnetic Abrasive Finishing Process
CHAPTER 1: INTRODUCTION 1. Magnetic Abrasive Finishing (MAF) Surface roughness of parts produced by conventional machine tools, depends n the machine tool system and the cutting process. It is difficult to produce a smooth surface on complicated profiles at an economic cost by using conventional machining processes. This and the advent of new ‘ difficult-to-machine’ materials like hardened steel, nickel, cobalt, titanium alloys, ceramics, glass, etc., have necessitated the need for...
5,357 Words | 19 Pages
• Electromagnetic Field Theory Lecture Notes
REFERENCE BOOKS FOR ELECTROMAGNETIC WAVE THEORY AND MICROWAVES. 1) D.CHENG, “ FIELD & WAVE ELECTROMAGNETICS” ADDISON-WESLEY 2) UMRAN S. INAN, AZIZ S. INAN , “ENGINEERING ELECTROMAGNETICS” , ADDISON-WESLEY 1999 3) R.COLLINS, “FOUNDATIONS OF MICROWAVE ENGINEERING” Mc GRAW-HILL 1992 4) D.POZAAR, “MICROWAVE ENGINEERING” ADDISON-WESLEY 1990 FOUR FUNDAMENTAL ELECTROMAGNETIC FUNCTIONS • r E r D r ( r , t ) - Electric Field Intensity – (V/m) • r (r , t ) - Electric Flux...
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• Physics Lab: Electric Field Lines
Morgan Land Elizabeth Hollis Physics II February 7, 2012 Electric Fields Lab Abstract: In this lab we will study the equipotential lines in an electric field in order to study the structure of the electric lines of force. We will plot the position of electric field lines in a given electric field using both a manual method and a computer software program. There is an electric field in any...
573 Words | 3 Pages
• Knowledge of Magnetic Separator on History, Function, Selection
At present, our country magnetic separation machinery manufacturer a lot, to make the product variety, specifications complex, the classification methods are also different. Although various magnetic separation machine has a different program difference, but according to the magnetic YangJiang degree, produce a magnetic field method, structure, choose different role don't, magnetic separation machine into a variety. Magnetic separator machine is use of various minerals than the coefficient of...
513 Words | 2 Pages
• Magnetic Separator Should Note the Following Points
The magnetic separator is one of commonly used preparation equipments in magnetic separation factory. It has dry and wet two types. According to types of magnets, it can be divided into permanent magnet type and electromagnet type. It is also can be divided into strong magnet type, middle magnet type and weak magnet type according to the magnetic field strength. Different magnetic separators have different characteristics and performance. 1, to maintain good lubrication condition is to extend...
392 Words | 2 Pages
• Magnetic Induction of a Current-Carrying Long Straight Wire Magnetic Induction of a Current-Carrying Long Straight Wire
a) Derive an expression for the magnetic field B at a point of distance r, from an infinitely long wire that carries a current I. Your derivation should include the direction of the magnetic field with respect to the direction of current flow. Verify your expression by using the experimental results obtained. If your results do not show the expected relationship, explain why. In order to derive an expression for the magnetic field B at a point of distance r, from an infinitely long wire that...
376 Words | 2 Pages
• Numerical Analysis of Levitating Force Using Magnetic Shielding Effect of Ybco Plates
This article has been accepted for inclusion in a future issue. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 1 Numerical Analysis of Levitating Force Using Magnetic Shielding Effect of YBCO Plates Tomoaki Takao, Akihiro Niiro, Soichiro Suzuki, Masahiro Hashimoto, Junichiro Takeda, Toshihiro Kobayashi, and Hiroki Kamijo Abstract—A magnetic levitation system using magnetic shielding effect of HTS bulk is studied. The system is constructed by permanent magnets, zero-ﬁeld-cooled...
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• Investigation of magnetocaloric effect in La0.45Pr0.25Ca0.3MnO3 by magnetic, differential scanning calorimetry and thermal analysis
Journal of Magnetism and Magnetic Materials 324 (2012) 3351–3355 Contents lists available at SciVerse ScienceDirect Journal of Magnetism and Magnetic Materials journal homepage: www.elsevier.com/locate/jmmm Investigation of magnetocaloric effect in La0.45Pr0.25Ca0.3MnO3 by magnetic, differential scanning calorimetry and thermal analysis M. Aparnadevi, S.K. Barik, R. Mahendiran n Department of Physics, 2 Science Drive 3, National University of Singapore, Lower Kent Ridge Road,...
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• Magnetic Abrasive Finishing of Thick Cylinder Tube Sus 304
INTERNAL FINISHING OF THICK CYLINDER SUS 304 STEEL TUBES USING MAGNETIC ABRASIVE FINISHING SETUP Abstract Magnetic Abrasive Finishing (MAF) is an advanced finishing method, which improves the quality of surfaces and performance of the products. Surface is finished by removing the material in the form of microchips by abrasive particles in the presence of magnetic field. The material is removed in such a way that surface finishing and deburring are performed simultaneously with the applied...
3,927 Words | 13 Pages
• Evidence-Based Use of Pulsed Electromagnetic Field Therapy in Clinical Plastic Surgery
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• Comparing the Magnetic Moment of Two Bar Magnets using Equal Distance Method and Null Deflection Methods with a Deflection Magnetometer in Tan
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256 Words | 15 Pages
• China Magnetic Materials Industry Report, 2013-2016 Report by SinoMarketInsight at Analyze Future
Magnetic materials refer primarily to the materials with direct or indirect magnetism composed of transition elements like ferrum, cobalt, nickel and their alloys. Magnetic materials find application in wind power, electronics, computer, communication, medical treatment, household appliances and military fields. By quality and structure, magnetic materials can be classified into ferrite magnetic materials, rare earth magnetic materials, and others. In 2012, the number of flexible ferrite...
313 Words | 2 Pages
• Applications of Electromagnetic Induction including Eddy Currents:
A cardboard is a moving part of the given hand made microphone. When a sound wave strikes the diaphragm (cardboard in the following experiment) of the microphone, the diaphragm vibrates back and forth, and the attached coil moves along with it. Additionally, magnet is attached with coils on a cardboard. When the coil alternately approaches and move back from the magnet, the flux through the coil changes. As a result of this, an ac emf is induced in the coil. Next, this electrical signal is...
390 Words | 1 Page
• world war 2 - 1433 Words
Introduction Did you know that you probably used an electric motor today? Yes, that's right. If you put on clothes that were washed in a washing machine, rode in a car, ate food from a fridge, warmed up lunch in a microwave, or played a video game, you used an electric motor! Try this science fair project and you'll learn how to make a simple electric motor by having two magnets "talk" to each other. As they interact, they will alternate between "liking" each other (being pulled together),...
1,433 Words | 4 Pages
• Physics Hots Class Xii
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CORE SYLLABUS for National Eligibility-Cum-Entrance Test (NEET) for Admission to MBBS/BDS Courses The Medical Council of India (MCI) recommended the following syllabus for National Eligibility-cum-Entrance Test for admission to MBBS/BDS courses across the country (NEET-UG) after review of various State syllabi as well as those prepared by CBSE, NCERT and COBSE. This is to establish a uniformity across the country keeping in view the relevance of different areas in Medical Education....
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• How Does a Permanent Magnet Work?
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﻿A.C. P7 Describe the properties and an application of two different magnetic materials commonly used in electrical and electronic engineering Task 1 By research and investigation; a) Identify and name two magnetic materials used in electrical engineering b) Give an application of each of the two materials c) Define two of the magnetic properties terms listed below: B-H curve*, retentivity (a.k.a. remanence), coercivity (a.k.a. coercive force), hysteresis, absolute permeability*,...
1,742 Words | 7 Pages
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Magnetism – Lab 19 Go to http://phet.colorado.edu/simulations/sims.php?sim=Magnets_and_Electromagnets and click on Run Now. Part I: 1. Move the compass slowly along a semicircular path above the bar magnet until you’ve put it on the opposite side of the bar magnet. Describe what happens to the compass needle. The white lead of the needle faces the South part of the magnet in a perpendicular way. When the needle is facing the center of the magnet, the lead turns to a 90 degree...
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﻿Unit 3 Lesson 5 Electromagnetism Assessment Template 1. Explain what it means when we say a substance is magnetic. (HINT: Be sure to mention the role of the Electrons) If a substance is magnetic, we are actually saying that it is able to be acted upon by a magnetic field. When electricity flows through a circuit, it creates a magnetic field.When a magnet cuts across a circuit, a voltage is produced. 2. Discuss the relationship between electric and magnetic fields. (HINT: Be sure to discuss...
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Directorate of Education Govt. of NCT of Delhi Additional Support Material on Value Based Questions for the Session 2012-2013 Subject: Physics Class : XII Under the guidance of : Dr. Sunita S. Kaushik Addl. DE (School/Exam) Coordination by : Ms. Nirupma Abhyankar Principal, SKV No.1 Sagarpur Prepared by : 1. Ms. Girija Shankar Lecturer GGSSS Yamuna Vihar 2. Ms. Pratima Lecturer SKV A-Block Janak Puri 3. Ms. Neelu Sharma Lecturer SKV No.1 Sagarpur...
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Circular motion, gravitational field, and oscillation 1.Define gravitational field strength: Force per unit mass 2. Explain why there is a point between two point masses at which the gravitational field strength is zero. Because gravitational fields of two masses are in opposite directions, so there is a point where it is zero What is meant by angular velocity The rate of change of the angular displacement of an object as it moves along curved path. Generally when asked to...
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﻿PHYSICS PROJECT WORK presented by : tamojeet pandit class : xii - 'c' INDEX SLNO TOPIC PAGE NO 1. Certificate . 2. Acknowledgement 3. Aim 4. Materials and Equipment 5. Theory 6. Experimental Procedure 7. Result 8. Precautions 9. Bibliography CERTIFICATE This is to certify that TAMOJEET PANDIT studying in class XII – ‘C' has successfully completed the project in PHYSICS as prescribed by the CBSE Board in the...
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• Physics Quiz - 934 Words
1. Which of the following statements about magnetic fields is not true? | Magnetic Flux is a vector. | | Changing magnetic fields create electric fields. | | Changing electric fields create magnetic fields. | | The magnetic field cannot do work on a moving charge. | | The magnetic force on a moving charge can be zero. | 2. If you double the current through an inductor, the energy stored in the associated magnetic field increases by a factor of _____. | Two - wrong |...
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SUMMARY Magnetic levitation is the process of levitating an object by exploiting magnetic fields. If the magnetic force of attraction is used, it is known as magnetic suspension. If magnetic repulsion is used, it is known as magnetic levitation. In the past, magnetic levitation was attempted by using permanent magnets. Earnshaw’s theorem however, proves that this is mathematically impossible. There exists no arrangement of static magnets of charges that can stably levitate an object....
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﻿PHY 114 Faraday’s Law of Induction Stephanie Scott Section: 10849 Group #3 Bochao Li 3/31/15 Abstract: The objective of the Faraday’s Law of Induction lab was to verify Faraday’s law of induction by measuring the emf generated in a small coil and comparing it with the calculated value. Secondly the goal was to investigate the relationship between the emf and the frequency of the driving signal. The magnetic field was found to be uniform throughout. For the frequency of 40 Hz, the...
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• Giant Magnetoresistance - 590 Words
GIANT MAGNETORESISTANCE In this essay we will explore some brief historical information about Giant Magnetoresistance (GMR), its basic principle of operation and some of its current and potential applications. To begin with, the idea of GMR is based on the change in the resistance of very thin (scale of nanometers) ferromagnetic materials when an external magnetic field is applied. The term “Giant” is to describe the size of the change in the resistivity in the order of 10% to 20%, considered...
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• Nikola Tesla - 414 Words
In 1882, Nikola Tesla discovered the rotating magnetic field, a fundamental principle in physics and one of the greatest discoveries of all times. In February, 1882, Nikola Tesla was walking with his friend through a city park in Budapest, Hungary. Tesla was reciting stanzas from Goethe's Faust, the sun was just setting, when suddenly the elusive solution to the rotating magnetic field, which he had been seeking for a long time, flashed through his mind. At this very moment, he saw clearly in...
414 Words | 2 Pages