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The output of a step down transformers is measured to be 48 V when connected to a 12 W bulb. The value of peak current is

Options

  1. A1 2 A
  2. B2 A
  3. C1 2 2 A
  4. D1 4 A

Correct answer

C. 1 2 2 A

Step-by-step solution

Given, Output of step down transformer V s = 48 V Power associated with secondary coil P s = 12 W I s = P s V s = 12 48 = 1 4 = 0.25 A Amplitude of current I 0 = I s 2 = 0.25 2 = 2 4 = 1 2 2 A

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