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NEET2007PhysicsAlternating CurrentActual

In an (A C ) circuit the potential differences across an inductance and resistance joined in series are respectively (16 ~V ) and (20 ~V ). The total potential difference of the source is

Options

  1. A(20.0 ~V )
  2. B(25.6 ~V )
  3. C(31.9 ~V )
  4. D(53.5 ~V )

Correct answer

B. (25.6 ~V )

Step-by-step solution

(V_L=16 ~V , V_R=20 ~V ). In the inductor the current lags by ( 2 ). ( array ll V= V_L^2+V_R^2 = 256+400 V_ total =25.6 ~V . array )

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