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An electric bulb is rated 220 volt -100 watt. The power consumed by it when operated on 110 volt will be

Options

  1. A50 watt
  2. B75 watt
  3. C40 watt
  4. D25 watt

Correct answer

D. 25 watt

Step-by-step solution

V₁^2 P₁ = V₂^2 P₂ = Resistance P₂=25 ~W

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