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Impedance and Resonance Frequency of a Circuit

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Consider a series RLC circuit with R=15 ohm, L=200mH,C=75uf, and a maximum voltage of 150V.
a) What is the impedance of the circuit at resonance?
b) What is the resonance frequency of the circuit?
c) When will the current be greatest - at resonance, at 10 percent below the resonant frequency, or at 10 percent above the resonant frequency?
d) What is the rms current in the circuit at a frequency of 60 Hz?

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Solution attaches a .doc and .pdf explaining how to find the impedance, resonance frequency, when a current will be greatest and rms current in a circuit.