28. IE An inductor is connected to a variable-frequency ac voltage source. (a) If the...
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28. IE •• An inductor is connected to a variable-frequency ac voltage source.
(a) If the frequency decreases by a factor of 2, the rms current will be (1) 2, (2) 1/2,
(3) 4, (4) 1/4 times the original rms current. Explain.
(b) If the rms current in an inductor at 40 Hz is 9.0 A, what is its rms current if the frequency is changed to 120 Hz?
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Related Book For 
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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