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JEE Main202431 Jan 2024Evening ShiftPhysicsAlternating CurrentActual

An AC voltage V = 20 sin 200 π t is applied to a series LCR circuit which drives a current I = 10 sin 200 π t + π 3 . The average power dissipated is:

Options

  1. A21 . 6 W
  2. B200 W
  3. C173 . 2 W
  4. D50 W

Correct answer

D. 50 W

Step-by-step solution

The average power dissipated is, < P > = I V cos ϕ = 10 2 × 20 2 × cos 60 ° = 50 W

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