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Most Important Selected Qs for JEE AdvancedPhysicsAlternating Current

In the circuit shown in the figure, the A.C. source gives a voltage V =20 (2000 t ) volt. Neglecting source resistance, the voltmeter and ammeter readings will be :-

Options

  1. A0V ,2A
  2. B0V .1.4A
  3. C5.6V,0.47A
  4. D1.68V, 0.47A

Correct answer

C. 5.6V,0.47A

Step-by-step solution

aligned & Here 1 LC = 1 5 10⁻³ 50 10⁻⁶ =2000 rad / s & = 1 LC so resonance condition I = V R = 20 / 2 6+4 = 2 =1.4 ~A & Reading of ammeter =1.4 ~A . Reading of voltmeter =4 2 ~V =5.6 ~V aligned

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