Required Vocabulary – IB 12 Higher Level Physics and Physical Measurement 1. Fundamental Units – seven basic units of the SI measurement system: kilogram‚ second‚ mole‚ meter‚ ampere‚ Kelvin‚ candela. 2. Derived Units – units that are combinations of fundamental units. These combinations may or may not have a separate name. (eg. 1 kg m/s2 = 1 N) 3. Accuracy - An indication of how close a measurement is to the accepted value (a measure of correctness). 4. Precision - An indication
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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 search coil‚ fluxgate‚ optically pumped‚ nuclear precession‚ SQUID‚ Hall-effect‚ anisotropic magnetoresistance
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one pair leaks over to another. As current flows through a conductor‚ what is produced? As current runs through a conductor and it produces an electrical current. What is induction and how does it cause Crosstalk? Induction is when one electrical field from a conductor can create a current in another conductor. What affect does distance between wires have on Crosstalk? The closer conductors are the greater the induced current is. If wires are perpendicular to each other‚ how much Crosstalk is
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accidents to expand. Control objective is to concentrate on ensuring the quality and recovery under the premise of improving the processing capacity of magnetic separation equipment. Magnetic Separator process parameters to the ore‚ pulp density‚ magnetic field strength‚ magnetic separator divided the constituency level‚ magnetic separator speed and grade of such concentrate and tailings. Magnetic separation process control equipment‚ mainly magnetic separation process sequence control‚ to the ore deposits
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de-magnetise. MAGNETIC FIELD: The area around a magnet where another magnet would feel a force. MAGNETIC FIELD LINES: Show the direction of the magnetic field. The lines run from North to South. Where the field is strong‚ they are close together. INDUCED MAGNETISM: A magnetic material can be magnetised by being placed in a magnetic field. ELECTROMAGNET: A current-carrying coil of wire (SOLENOID) often wrapped around a soft magnetic core which produces a magnetic field quite like a bar magnet
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Field Study 2 Experiencing the Teaching – Learning Process FIELD STUDY 2 Experiencing the Teaching – Learning Process LOOKING THROUGH THE MEANINGFUL LEARNING EXPERIENCES Name of FS Student: Course: Year & Section: Resource Teacher: Signature: _________________________ Cooperating School: Your Target At the end of this activity‚ you will be able to identify the principles in teaching – learning activities‚ manuals and other instructional materials used by the
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Electromagnets! An electromagnet is a type of magnet in which the magnetic field is produced by the flow of electric current. The magnetic field disappears when the current is turned off. Electromagnets are widely used as components of other electrical devices‚ such as motors‚ generators‚ relays‚ loudspeakers‚ hard disks‚ MRI machines‚ scientific instruments‚ and magnetic separation equipment‚ as well as being employed as industrial lifting electromagnets for picking up and moving heavy iron objects
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PDF created with pdfFactory Pro trial version www.pdffactory.com Contents ü History ü What is Magic Tee ? ü Microwave T-junctions ü Two-port network ü E-plane tee ü H-plane tee ü MAGIC TEE (HYBRID TEE) ü Characteristics of magic tee ü Electric field pattern of magic tee ü Application of Magic Tee PDF created with pdfFactory Pro trial version www.pdffactory.com HISTORY Ø A magic tee is a four-port‚ 180 degree hybrid splitter‚ realized in waveguide. Ø Originally developed in World-War II
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affect with electric and magnetic fields. The electromagnetic force is carried by the photon and is responsible for atomic structure‚ chemical reactions‚ the attractive and repulsive forces associated with electrical charge and magnetism‚ and all other electromagnetic phenomena. According to Coulomb’s Law‚ we know electric charges get Coulomb force in the electric field while current receives another applied force‚ which is Ampere force when it is in a magnetic field. Overall‚ electromagnetic force
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Describe the main features of a DC electric motor and the role of each feature Part | Description | Role | Magnet(s) | Either permanent or electromagnetic. Induce a magnetic field and fit around the armature. | The magnets supply the magnetic field which interacts with the current in the armature to produce the motor effect. | Armature | The armature consists of a cylinder of laminated iron mounted on an axle. Often there are longitudinal grooves into which the coils are wound. | The armature
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