An RLC series circuit has R = 5 Ω and L = 1 H. Which of the following values of capacitance will make this circuit critically damped?

For a series RLC circuit, the lower half-power frequency f1 is 4 kHz and the upper half-power frequency f2 is 16 kHz. Which of the following statements is/are true? 1. The resonant frequency f0 is 12 kHz. 2. The bandwidth of the resonant circuit is 12 kHz.

The capacitive reactance of a circuit is 5 Ω when connected to a 200 V, 50 Hz supply. If the frequency of the applied voltage is reduced to 30 Hz, what will the capacitive reactance of the circuit become?