Chapter 31229P31.47(a)Doubling the number of turns.Amplitude doubles: period unchanged(b)Doubling the angular velocity.doubles the amplitude: cuts the period in half(c)Doubling the angular velocity while reducing thenumber of turns to one half the original value.Amplitude unchanged: cuts the period in halfFIG. P31.47P31.48εθπ=−°−×FHGIKJ=−NtBANrBt∆∆∆∆coscos.....afejej2301000500115050020 0 100875mT TsV2(a)IR===ε43 8..V0.020 0 AΩ(b)P=I438383...V AWafP31.49In the loop on the left, the induced emf isεπ====ddtAdBdtBΦ01001002. mTs Vbgand it attempts to produce a counterclockwisecurrent in this loop.In the loop on the right, the induced emf is=ddtBΦ0 1501002 252m TsVFIG. P31.49
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .