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R = 3 ohm, 200 V rms source, circuit at resonance. Power dissipated?
A26.7 kW
B4.8 kW
C6.7 kW
D13.3 kW
Answer & Solution
Correct answer: D. 13.3 kW
At resonance Z = R, so I = 200/3 = 66.7 A and P = I squared R is about 13.3 kW, larger than off resonance.
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