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How can an LCR circuit be made purely re...

How can an LCR circuit be made purely resistance?

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What is the power factor of a circuit having a pure resistance only?

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Knowledge Check

  • Statement I: Q-factor of a series LCR circuit is 1/Rsqrt(L/C) Statement II: Resonant frequency of an LCR circuit does not depend on the resistance of the circuit.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I
    C
    Statement I is true, statement II is false
    D
    Statement I is false, statement II is true

  • In a resonant LCR circuit,

    A
    power factor is zero
    B
    power factor is one
    C
    power dissipated in the resistor is zero
    D
    power dissipated in the capacitor is zero

  • The phase difference between V and I of an LCR circuit in series resonance is

    A
    `pi`
    B
    `pi/2`
    C
    `pi/4`
    D
    0

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