Rare-earth metals are widely used in many areas‚ such as electronic‚ petroleum chemical industry‚ metallurgy‚ machinery‚ energy‚ light industry‚ environmental protection and agriculture. The application rare earth can produce fluorescent material‚ rare earth metal hydride battery materials‚ electric light source materials‚ permanent magnetic materials‚ hydrogen storage material‚ catalytic materials‚ precision ceramic material‚ laser materials‚ superconducting materials‚ magnetostrictive material
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Grading: content good topic for the course. I think it could have been strengthened with some more detail. How much is transported‚ how much is used in a windmill etc.. But you pulled together some interesting sources. 7.5 Format: okay 5 Spelling and grammar/style: The sentence structure and working is sometimes a problem. I have edited some of it to give you some ideas on how to improve it. Keep working on this. 2.5 References: Endnote credit (2)‚ referencing is mostly okay. I would
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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 regression
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DESIGN AND IMPLEMENTATION OF ANANALOG MULTIMETER USINGPERMANENT MAGNET MOVING COIL(PMMC) METER MOVEMENT | KEVIN BARRAQUIAS DELOS SANTOS 2008-19116 MARX MARJONEL BIBAR JOVELLANO 2008-30845 PRINCE TEOMEL GUSTO MATEL 2008-18863 SUBMITTED TO THE FACULTY OF THE COLLEGE OF ENGINEERING AND AGRO-INDSUTRIAL TECHNOLOGY‚ UNIVERSITY OF THE PHILIPPINES LOS BAÑOS‚ IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF BACHELOR OF SCIENCE IN ELECTRICAL ENGINEERING OCTOBER 2010 I.
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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 reminders of some rules and guidelines you should follow when reviewing: 1
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To accomplish this lab‚ we will do 5 stations‚ and we need these instruments: several magnets which have different sizes‚ a board‚ a piece of alumium metal‚ a battery‚ two pieces of wires‚ a nail‚ a 180cm copper pipe. Station1‚ we tilt a smooth board and roll the neodymium down it‚ the track is curve because the magnetic field of the earth is affecting the magnet. The effect most pronounced when the magnet is rolling NS/SN. Station 2‚ we roll a neodymium down an aluminum strip set 5 degrees.
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behavior of a bar magnet in varying magnetic fields at the end of a solenoid and hence estimate the horizontal component BH of the Earth’s magnetic fields. Theory A magnet is an object that can exert a magnetic force to any object around it. When a ferrous object is placed near it‚ the magnetic force will attract it towards the magnet. The magnetic force forms a magnetic field around the magnet which is invisible to human naked eye. When two magnetic fields from two different magnets meet‚ attraction
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example‚ spin a coil of wire around a magnet to produce a steady current” [3]) did electricity become viable for use in technology. Since this electricity and the inventions that came with it has exploded as the worlds knowledge of electromagnitism has broadends and advances. Through the expansion of electromagnatism‚ various types of generators have been schemed and tested against others for efficiency. Almost all of these generators involved permanent magnets to create the necessary magnetic fields
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illustrate‚ my high school was divided into two; the top floor was the magnet program and the rest of the school was for regulars. The schools physical structure depicts the social class within the school system that students are categorized into. Ironically‚ I was enrolled in the regular school‚ but because of my outstanding GPA from middle school my classes were a mixed of both magnet and regular. As a result‚ by being exposed to both magnet and regular classes I witness the inequalities within my schools
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Analogies 6.Laws of magnetic circuit 7.Application 8.Referenece Concept and analogies of magnetic circuit HISTORY As with all great discoveries the history of magnets is very colorful and interesting too. The Shepherd Magnes The most popular legend accounting for the discovery of magnets is that of an elderly Cretan shepherd named Magnes. Legend has it that Magnes was herding his sheep in an area of Northern Greece called Magnesia‚ about 4‚000 years ago. Suddenly both‚
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