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Manipal MET2020PhysicsCurrent Electricity

On a heater coil it is written that, 250 V , 500 W . What is the resistance of this coil?

Options

  1. A62.5
  2. B100
  3. C200
  4. D125

Correct answer

D. 125

Step-by-step solution

Given V=250 ~V and P=500 ~W As we know that, P= V^2 R R=V^2 / P= 250 250 500 = 625 5 =125

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