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A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be

Options

  1. A750 watt
  2. B500 watt
  3. C250 watt
  4. D1000 watt

Correct answer

C. 250 watt

Step-by-step solution

p = V ^2 R or R = (220)^2 1000 Power consumed = V ^2 R = 110 110 220 220 1000=250 watt

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