Physics · Alternating Current
A series LCR circuit containing a 5.0 H inductor, an 80 μF capacitor, and a 40 Ω resistor is connected to a 230 V variable frequency AC source. The angular frequencies of the source at which the power transferred to the circuit is half the power at the resonant angular frequency are likely to be:
- 146 rad/s and 54 rad/s✓
- 250 rad/s and 25 rad/s
- 325 rad/s and 75 rad/s
- 442 rad/s and 58 rad/s
Correct answer
46 rad/s and 54 rad/s
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