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AP EAMCET202119 Aug 2021Evening ShiftPhysicsAlternating CurrentActual

A bulb of resistance 280 Ω is supplied with a 200 V A C supply. What is the peak current?

Options

  1. ANearly 1   A
  2. BNearly 2   A
  3. CNearly 1 . 4   A
  4. DNearly 2 . 8   A

Correct answer

A. Nearly 1   A

Step-by-step solution

Peak voltage, V peak = 2 V Peak current, I peak = V peak R = 2 V R ⇒ I peak = 2 × 200 280 ≈ 1   A

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