summary13 - Faradays Law of Induction Magnetic flux = A B...

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Faraday’s Law of Induction Magnetic flux Φ = A B cos θ θ B A A changing magnetic flux generates an induced voltage (emf = electromotive force) V = [emf] = - N ∆Φ / t ∆Φ = (ABcos θ ) final – (ABcos θ ) initial
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Voltage induced in a moving conductor V max = [emf] = -Blv Length Velocity Motional EMF Induced emf depends on angle between the Magnetic field and the velocity direction.
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Lenz’s Law An induced emf gives rise to a current whose magnetic field opposes the original change in flux new, larger B Induced B Induced current
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Lenz’s Law Exercises
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summary13 - Faradays Law of Induction Magnetic flux = A B...

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