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MHT CET Medical202623 April 2026Morning ShiftPhysicsAlternating CurrentActual

The output of a step-down transformer is measured to be 56 V when connected to 14 W light bulb. The value of peak current is (in A)

Options

  1. A1 2
  2. B1 3
  3. C1 2 2
  4. D1 3 2

Correct answer

C. 1 2 2

Step-by-step solution

Given output power P = 14 W and output RMS voltage V_ rms = 56 V. Using the relation P = V_ rms I_ rms : I_ rms = P V_ rms = 14 56 = 1 4 A The peak current I₀ is given by I₀ = 2 I_ rms . I₀ = 2 1 4 = 1 2 2 A Answer: 1 2 2

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