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MHT CET20226 Aug 2022Morning ShiftPhysicsAlternating CurrentActual

In series LCR circuit, the voltage across L, C and R is 50 ~V , 20 ~V and 40 ~V respectively. The a.c. voltage applied across the combination of LCR is

Options

  1. A10 ~V
  2. B110 ~V
  3. C70 ~V
  4. D50 ~V

Correct answer

D. 50 ~V

Step-by-step solution

The ac voltage across the LCR is given by: V_ r m s = V_R^2+ (V_L-V_C )^2 = 40^2+(50-20)^2 =50 ~V

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