A circuit consists of an inductor which has a resistance of 10 Ω and an inductance of 0.3 H, in series with a capacitor of 30 μF capacitance. Calculate(a) the impedance of the circuit to currents of 40 Hz (b) the resonant frequency (c) the peakvalue of stored energy in joules when the applied voltage is 200 V at the resonant frequency. Answer: [58.31 Ω; 53 Hz; 120 J]

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A circuit consists of an inductor which has a resistance of 10 Ω and an inductance of 0.3 H, in series
with a capacitor of 30 μF capacitance. Calculate(a) the impedance of the circuit to currents of 40 Hz (b) the resonant frequency (c) the peakvalue of stored energy in joules when the applied voltage is 200 V at the resonant frequency.
Answer: [58.31 Ω; 53 Hz; 120 J]

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