# Electrical Engineering - RLC Circuits and Resonance

Exercise : RLC Circuits and Resonance - General Questions
11.
If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth
disappears
becomes sharper
increases
decreases
Explanation:
No answer description is available. Let's discuss.

12.
A 90 resistor, a coil with 30 of reactance, and a capacitor with 50 of reactance are in series across a 12 V ac source. The current through the resistor is
9 mA
90 mA
13 mA
130 mA
Explanation:
No answer description is available. Let's discuss.

13.
A resonant circuit has a lower critical frequency of 7 kHz and an upper critical frequency of 13 kHz. The bandwidth of the circuit is
7 kHz
13 kHz
20 kHz
6 kHz
Explanation:
No answer description is available. Let's discuss.

14.
If the value of C in a series RLC circuit is decreased, the resonant frequency
is not affected
increases
is reduced to zero
decreases
A 24 resistor, an inductor with a reactance of 120 , and a capacitor with a reactance of 120 are in series across a 60 V source. The circuit is at resonance. The voltage across the inductor is