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Ravenfaust Ravenfaust
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5 years ago

Figure 21.2




In Figure 21.2, a coil of 8 turns is wound on a square frame, 25 cm by 25 cm. The resistance of the coil is The coil is initially in a horizontal plane and a uniform vertical magnetic field B is present. Two views of the initial orientation of the coil are given in figs (a) and (b). Points P and Q are initially of the left and right sides of the frame, respectively. The coil is flopped over about axis through 180 degrees, to the final horizontal orientation, shown in fig (c). The time interval, during which the coil is flipped over, is 0.50 s. The average induced current in the coil during the 0.50 s time interval is 88 ma. The magnitude of the magnetic field which is present is closest to:

• 1.8 T

• 0.23 T

• 0.92 T

• 0.46 T

• 3.7 T
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College Physics

College Physics


Edition: 10th
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JamesriverdeanJamesriverdean
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