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A given conductor carrying a current of 1 A produces an amount of heat equal to 2000 J . If the current through the conductor is doubled, the amount of heat produced will be

Options

  1. A2000 J
  2. B4000 J
  3. C8000 J
  4. D1000 J

Correct answer

C. 8000 J

Step-by-step solution

Heat produced by the wire, W = I ^2 R aligned & W ₁ / W ₂= ( I ₁ )^2 / ( I ₂ )^2 & 2000 / W ₂=(1)^2 ((2)^2 . & W ₂=2000 X 4 / 1 & ~W ₂=8000 ~J aligned

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