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MHT CET202313 May 2023Morning ShiftPhysicsElectrostaticsActual

Three charges each of value +q are placed at the corners of an isosceles triangle ABC of sides AB and AC each equal to 2 a . The mid points of A B and A C are D and E respectively. The work done in taking a charge Q from D to E is ( ₀= . permittivity of free space)

Options

  1. AZero
  2. B3 qQ 4 ₀ a
  3. CqQ 8 ₀ a
  4. D3 qQ 8 ₀ a

Correct answer

A. Zero

Step-by-step solution

aligned & Given A B=A C=2 a & V_D=V_E ( D and E are mid-points ) aligned The work done in taking a charge q from D to E is array rlrl & W=q V=q (V_D-V_E ) & W=0 & (Equipotential surfaces) array

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