MCQ
Power delivered by the source of the circuit becomes maximum, when
  • A
    $\omega L = \omega C$
  • $\omega L = \frac{1}{{\omega C}}$
  • C
    $\omega L = - \,{\left( {\frac{1}{{\omega C}}} \right)^2}$
  • D
    $\omega L = \sqrt {\omega C} $

Answer

Correct option: B.
$\omega L = \frac{1}{{\omega C}}$
b
b
As we know,

power delivered by the source of the circuit becomes maximum when, load resistance equals to source resistance.

we know, in $L-C-R$ circuit,

load resistance is inductive reactance and source resistance is reactance of capacitor.

$\text { e.g., } X_L=X_C$

or, $\omega L =\frac{1}{\omega C }$

hence, Power delivered by the source of the circuit becomes maximum, when,

$\omega L =\frac{1}{\omega C }$

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