ch30-p002 - 2. (a) We use = dB/dt = r2dB/dt. For 0 < t...

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2. (a) We use ε = – d Φ B / dt = – π r 2 dB / dt . For 0 < t < 2.0 s: () 2 22 0.5T 0.12m 1.1 10 V. 2.0s dB r dt ⎛⎞ =− × ⎜⎟ ⎝⎠ ππ (b) For 2.0 s < t < 4.0 s: dB / dt = 0. (c) For 4.0 s <
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