# RLC Circuits – Exercise – 1

RLC Circuits » Exercise – 1

1. A 10 Ω resistor, a 90 mH coil, and a 0.015 μF capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is ________. (a) 1,616 Ω (b) 161 Ω (c) 3,387 Ω (d) 1,771 Ω

Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss

2. A 12 Ω resistor, a 40 μF capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is ________. (a) 28.1 Hz (b) 281 Hz (c) 2,810 Hz (d) 10 kHz

Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss

3. A 15 Ω resistor, a 220 μH coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit? (a) 138 MHz (b) 10,866 Hz (c) 1,907 Hz (d) 138 kHz

Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss

4. In a series RLC circuit that is operating above the resonant frequency, the current ________. (a) lags the applied voltage (b) leads the applied voltage (c) is in phase with the applied voltage (d) is zero

Explanation
Explanation : No answer description available for this question. Let us discuss.
Discuss

5. A resistor of 3 kΩ, a 0.05 μF capacitor, and a 120 mH coil are in series across a 5 kHz, 20 V ac source. What is the impedance, expressed in polar form? (a) 636 Ω (b) 3,769 Ω (c) 433 Ω (d) 4,337 Ω