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In an LCR a.c. circuit at resonance, the...

In an `LCR` a.c. circuit at resonance, the current

A

The wattless current

B

The displacement current

C

The idle current

D

The apparent current

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • In series RLC AC circuit, at resonance, the current is:

    A
    Always in phase with the genrator voltage.
    B
    Always lags the generator voltage
    C
    Always leads the generator voltage
    D
    May lead or lag behind the generator voltage.

  • In a series LCR circuit, at resonance the

    A
    total inpedance is `Lomega-(1//Comega)`
    B
    toal impedance is R
    C
    voltage across C and L are in phase
    D
    the voltage across C lags the source voltage by `pi//2`

  • In an LCR circuit, at resonance

    A
    the current is minimum
    B
    the current and voltage are in phase
    C
    the current leads the voltage by `pi//2`
    D
    the impedence is maximum

    • Similar Questions

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    In series LCR circuit at resonance

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    The power factor of LCR a.c. circuit at resonance is

    Assertion (A) : In a series LCR a.c. circuit resonance can take place when inductive and capacitive reactances are equal. Reason (R) : Sharpness of resonance increases if resistance presence in LCR resonance circuit is reduced.

    In LCR circuit during resonance

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