22 electromagnetic induction Flashcards by Isabelle Wee | Brainscape

Q

Definition

Faraday’s Law

A

The magnitude of the induced e.m.f. in a conductor is proportional to the rate at which magnetic field lines are cut by the conductor.

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Q

Definition

Lenz’s Law

A

The induced current is always in a direction to oppose the change production it.

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Q

Formula

Voltage in a Transformer

A

N_S/ N_P = V_S/ V_P

N = number of turns
S = secondary
P = primary

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Q

Formula

Power in an Ideal Transformer

A

V_SI_S = V_PI_P

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