# Electrical Engineering - RLC Circuits and Resonance

Exercise : RLC Circuits and Resonance - General Questions
1.
A 10 resistor, a 90 mH coil, and a 0.015 F capacitor are in series across an ac source. The impedance magnitude at 1,200 Hz below fr is
1,616 161 3,387 1,771 Explanation:
No answer description is available. Let's discuss.

2.
In a series RLC circuit that is operating above the resonant frequency, the current
lags the applied voltage
is in phase with the applied voltage
is zero
Explanation:
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3.
A 15 resistor, a 220 H coil, and a 60 pF capacitor are in series across an ac source. What is the bandwidth of the circuit?
138 MHz
10,866 Hz
1,907 Hz
138 kHz
Explanation:
No answer description is available. Let's discuss.

4.
A resistor of 3 k , a 0.05 F 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?
636 3,769 433 4,337 A 12 resistor, a 40 F capacitor, and an 8 mH coil are in series across an ac source. The resonant frequency is