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JEE Main2002PhysicsCurrent ElectricityActual

If in the circuit, power dissipation is 150 ~W , then R is

Options

  1. A2
  2. B6
  3. C5
  4. D4

Correct answer

B. 6

Step-by-step solution

W= V^2 R_ net ; 150= (15)^2 R + (15)^2 2 R=6

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