D4: Induction

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Physics 11

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6 Terms

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magnetic flux formula

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induced emf formula

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emf induced across the ends of a straight conductor moving in a magnetic field Formula

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4
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Magnetic flux, Φ

the product of the normal component of magnetic field strength and the area through which it passes (Φ= BA)

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Magnetic field strength/flux density

B = Φ/A

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Faraday’s law

the magnitude of the induced emf is directly proportional to the rate of change of flux linkage, emf = -N(∆Φ/t∆)