MCQ
In the circuit shown in figure neglecting source resistance the voltmeter and ammeter reading will respectively, will be
Image
  • A
    $0 V, 3 A$
  • B
    $150 V , 3 A$
  • C
    $150 V , 6 A$
  • $0 V , 8 A$

Answer

Correct option: D.
$0 V , 8 A$
The voltage $V_L$ and $V_C$ are equal and opposite so voltmeter reading will be zero.
Also $R=30 \Omega, X_L=X_C=25 \Omega$
So $i=\frac{V}{\sqrt{R^2+\left(X_L-X_C\right)^2}}=\frac{V}{R}=\frac{240}{30}=8 \mathrm{~A}$

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