13_Chapter 20 HomeworkCH20 Induced Voltages and Inductance

13_Chapter 20 HomeworkCH20 Induced Voltages and Inductance...

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Induced Voltages and Inductance 187 20.30 () 2 5 max 2 rev 2 rad 1 min 100 2.0 10 T 0.20 m 1500 min 1 rev 60 s 1.3 10 V 13 mV horizontal NB A π ω ε  == ×   = 20.31 Note the similarity between the situation in this problem and a generator. In a generator, one normally has a loop rotating in a constant magnetic field so the flux through the loop varies sinusoidally in time. In this problem, we have a stationary loop in an oscillating magnetic field, and the flux through the loop varies sinusoidally in time. In both cases, a sinusoidal emf max sin t = EE where max NBA = E is induced in the loop. The loop in this case consists of a single band ( ) 1 N = around the perimeter of a red
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