Electrical Engineering - RLC Circuits and Resonance

Exercise : RLC Circuits and Resonance - General Questions
16.
To tune a parallel resonant circuit to a higher frequency, the capacitance should be
increased
decreased
left alone
replaced with inductance
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
In a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is
125 V
250 V
290 V
40 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
A certain series resonant circuit has a bandwidth of 2 kHz. If the existing coil is replaced with one having a higher value of Q, the bandwidth will
increase
remain the same
decrease
be less selective
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
A 9 mH coil is in parallel with a 0.015 F capacitor across an 18 kHz ac source. The coil's internal resistance, RW, is 60 . The circuit impedance is
17,340
1,734
290
1,018
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
A 15 resistor, an inductor with 8 inductive reactance, and a capacitor with 12 capacitive reactance are in parallel across an ac voltage source. The circuit impedance is
12.7
127
4,436
6,174
Answer: Option
Explanation:
No answer description is available. Let's discuss.