_________ the resonant frequency, the current in the inductor lags the voltage in a series RLC circuit. - RLC Circuits and Resonance

Electrical and Electronic Engineering (EEE) : RLC Circuits and Resonance - Quiz(MCQ)

_________ the resonant frequency, the current in the inductor lags the voltage in a series RLC circuit.

A)

Above

B)

Below

C)

Equal to

D)

Depends on the circuit

Correct Answer : Option (A) : Above

Explanation : The current in the inductor lags the voltage in a series RLC circuit if a circuit is inductive dominant i.e. if X_L > X_C
ω_L > 1/ω_C => ω > 1/√LC => ω > ω₀.
So, the current in the inductor lags the voltage in a series RLC circuit above the resonant frequency.

Recently Updated in RLC Circuits and Resonance Questions

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

A)

4 kHz

B)

7 kHz

C)

13 kHz

D)

20 kHz

Correct Answer : 4 kHz

X_L and X_C have opposing effects in an RLC circuit.

A)

True

B)

False

C)

Can Not Say

D)

None of the above

Correct Answer : True

In a certain series resonant circuit, V_C = 125 V, V_L = 125 V, and V_R = 40 V. The value of the source voltage is

A)

40 V

B)

125 V

C)

250 V

D)

290 V

Correct Answer : 40 V

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