Magnetism
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Flashcards covering key concepts about Magnetism.
Last updated 4:31 PM on 5/10/25
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8 Terms
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Magnet
A material that produces a magnetic field. Each magnet has two poles: south and north.
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Magnetic Moment Unit
Unit: A^2 * m
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How to make a magnet: Ferromagnet
Heating and tapping a ferromagnet
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How to make a magnet: Electromagnet
Using electric current & iron
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Magnetic field B Unit
Tesla, T, Gauss, G
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Magnetic field B of a straight current wire Magnitude
B = µ0I / 2⇡r where µ0 = 4⇡ ⇥ 10 7 T · m/A
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Magnetic field B at the center of a current loop Magnitude
B = µ0I / 2r where r is the radius.
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Magnetic field B inside of a solenoid Magnitude
B = µ0nI where n is the number of loops per unit length of the solenoid.
