# Series and Parallel Resonant Circuits MCQ’s

This set of RF & Microwave Circuit Design Multiple Choice Questions & Answers (MCQs) focuses on “Series and Parallel Resonant Circuits”.

1. Quality factor-Q of a resonant circuit signifies:
a) Loss in the resonant circuit
b) Gain in the resonant circuit
c) Magnetic energy stored in the circuit
d) Electric energy stored in the circuit

2. The total energy stored in a series RLC circuit is equal to the energy stored in the inductor.
a) True
b) False

3. In a series LCR circuit, at resonance point the energy stored in the inductor and capacitor in the form of magnetic and electric energies are equal.
a) True
b) False

4. Higher the quality factor of a series LCR circuit, greater is the operating bandwidth of the resonant circuit.
a) True
b) False

5. For a parallel resonance circuit, the plot of input impedance magnitude v/s frequency has a dip at the resonant frequency.
a) True
b) False

6. Loaded Q and External Q are 2 different parameters.
a) True
b) False

7. The plot of input impedance magnitude v/s frequency has a peak at the resonant frequency.
a) True
b) False

8. The relation between unloaded Q and external Q is:
c) External Q = unloaded Q
d) None of the mentioned

9. The bandwidth of a series RLC circuit is 200 Hz. Then the quality factor of the circuit is:
a) 200
b) 100
c) 0.005
d) 0.5

10. If a parallel RLC circuit is excited with a source of 8v, 50 Hz and the circuit has an inductor of 1mH, capacitor of 1µF and a resistor of 50Ω, then the power loss that occurs in the circuit is:
a) 6.4mW
b) 3.2mW
c) 12.8mV
d) None of the mentioned