ch30-p018 - 18. To have an induced emf, the magnetic field...

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18. To have an induced emf, the magnetic field must be perpendicular (or have a nonzero component perpendicular) to the coil, and must be changing with time. (a) For 2 ˆ (4.00 10 T/m) k B y G , /0 dB dt = and hence ε = 0. (b) None. (c) For 2 ˆ (6.00 10 T/s) k B t G , = d Φ B dt = A dB dt = (0.400 m × 0.250 m)(0.0600 T/s) = 6.00 mV, or | | = 6.00 mV.
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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