21_InstSolManual_PDF_Part15 - versus t is sketched in...

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(d) Let clockwise currents be positive. At the loop is entering the field. It is totally in the field at time and beginning to move out of the field at time The graph of the induced current as a function of time is sketched in Figure 21.64. Figure 21.64 21.65. Set Up: At the angle between the normal to the loop and the magnetic field is zero. From the discussion of generators in Section 21.3, the rate of change of is The induced emf is Solve: (a) The graph of versus t is sketched in Figure 21.65a. (b) The graph of
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Unformatted text preview: versus t is sketched in Figure 21.65b. (c) The graph of versus t is sketched in Figure 21.65c. (d) Doubling halves the period of and doubles its amplitude. The graph of versus t is sketched in Figure 21.65d. Figure 21.65 F B t ( a ) t ( c ) E t ( b ) t ( d ) E E 5 2 v AB sin 1 2 v t 2 E v E 5 v AB sin v t 2v BA sin v t F B F B 5 BA cos v t . v AB sin v t . 2v BA sin v t . F B F B 5 BA cos f . f 5 v t . f t 5 I t t b t a t b . t a t 5 Electromagnetic Induction 21-15...
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