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AP® Physics C: E & M

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Difficult

$EMF$ Coil into Field

APPHEM-VBNVUC

What average $EMF$ would be produced from moving the coil, of one loop with a radius of $0.4 \text{ m}$, perpendicularly into the uniform magnetic field of $0.5 \text{ T}$? It takes 1 second from when the loop first reaches the edge of the magnetic field, until it is completely in the magnetic field.

A

$ -0.02 \pi \text{ volts} $

B

$ - 0.08 \pi \text{ volts} $

C

$ -0.12 \pi \text{ volts} $

D

$ -0.8 pi \text{ volts} $

E

$ -1.2 \pi \text{ volts} $