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NEETPhysicsCapacitance

Suppose that the a system consisting of two charges 7 mC and –2 mC (and with no external field) placed at (–9 cm, 0, 0) and (9 cm, 0, 0) respectively is now placed in an external electric field E = A (1/ r ² ); A = 9 × 10 ⁵ N C ⁻¹ m ² . What would the electrostatic energy of the configuration be

Options

  1. A47.2J
  2. B35.1J
  3. C49.3J
  4. D53.9J

Correct answer

C. 49.3J

Step-by-step solution

Correct Option is : (C) 49.3J

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