Question

A square loop of wire is held in a uniform 0.35 T magnetic field directed perpendicular to the plane of the loop. The length of each side of the square is decreasing at a constant rate of 4.0 cm/s. What emf is induced in the loop when the length is 9.2 cm?

Answer #1

A time-varying magnetic field is perpendicular to the plane of a
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and resistivity 2.07 × 10-8?·m.
The magnetic field increases as a function of time, with magnitude
B = (0.79 t) T/s
a) What is the magnitude of the emf induced in the loop?
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Express your answer using two significant figures.
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A
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