1.

A 440 V, 50 HZ AC source supplies a series LCR circuit with a capacitor and a coil. If the coil has 100 m resistance and 15 mH inductance, then at a resonance frequency of 50 Hz the half power frequencies of the circuit are ______________

A. 50.53 Hz, 49.57 Hz
B. 52.12 HZ, 49.8 Hz
C. 55.02 Hz, 48.95 Hz
D. 50 HZ, 49 Hz
Answer» B. 52.12 HZ, 49.8 Hz


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