Physics

Problem

Which one of the following expressions gives the magnitude of the emf induced in a secondary coil when the current in a nearby primary coil changes at a rate

\dfrac{dI_p}{dt}

? a)

N_s\dfrac{dI_p}{dt}

M\dfrac{dI_s}{dt}

M\dfrac{dI_p}{dt}

L\dfrac{dI_p}{dt}

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