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KCET2008PhysicsCapacitance

The total energy stored in the condenser system shown in the figure will be

Options

  1. A2 J
  2. B4 J
  3. C8 J
  4. D16 J

Correct answer

C. 8 J

Step-by-step solution

6 F and 3 F capacitors are in series aligned 1 C ₁ &= 1 6 + 1 3 C ₁ &=2 aligned C ₁ is parallel to 2 F capacitor C _ eq =2+2=4 F Total energy, U = 1 2 CV ²= 1 2 4 (2)²=8 J

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