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JEE Advanced2008PhysicsCurrent ElectricityActual

Figure shows three resistor configurations R₁, R₂ and R₃ connected to 3 ~V battery. If the power dissipated by the configuration R₁, R₂ and R₃ is P₁, P₂ and P₃ , respectively, then

Options

  1. AP₁>P₂>P₃
  2. BP₁>P₃>P₂
  3. CP₂>P₁>P₃
  4. DP₃>P₂>P₁

Correct answer

C. P₂>P₁>P₃

Step-by-step solution

Applying P= V^2 R R₁=1 , R₂=0.5 and R₃=2 , V₁=V₂=V₃=3 volt P₁= (3)^2 1 =9 ~W P₂= (3)^2 0.5 =18 ~W and P₃= (3)^2 2 =4.5 ~W P₂>P₁>P₃ correct option is (c).

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