Question

A series LCR circuit containing a 5.0 H inductor, 80 µF capacitor and 40 Ω resistor is connected to a 230 V variable frequency ac source. The angular frequencies of the source at which power transferred to the circuit is half the power at the resonant angular frequency are likely to be

• A. 42 rad/s and 58 rad/s
• B. 25 rad/s and 75 rad/s
• C. 50 rad/s and 25 rad/s
• D. 46 rad/s and 54 rad/s

Answer 1

Answer: (D)

46 rad/s and 54 rad/s

Answer 2

The correct answer is option (D) : 46 rad/s and 54 rad/s