In an L-R-C series circuit, R = 150 Ω, L = 0.750 H, and C = 0.0180 mF. The source has voltage amplitude V = 150 V and a frequency equal to the resonance frequency of the circuit. (a) What is the power factor? (b) What is the average power delivered by the source? (c) The capacitor is replaced by one with C = 0.0360 mF and the source frequency is adjusted to the new resonance value. Then what is the average power delivered by the source?

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In an L-R-C series circuit, R = 150 Ω, L = 0.750 H, and
C = 0.0180 mF. The source has voltage amplitude V = 150 V and
a frequency equal to the resonance frequency of the circuit. (a) What
is the power factor? (b) What is the average power delivered by the
source? (c) The capacitor is replaced by one with C = 0.0360 mF and
the source frequency is adjusted to the new resonance value. Then what
is the average power delivered by the source?

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