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KCET2008PhysicsElectrostatics

The charges +q and +q are placed at the vertices of an equilateral triangle of side If the net electrostatic potential energy of the system is zero, then is equal to

Options

  1. A- q 2
  2. B-q
  3. C+q 2
  4. DZero

Correct answer

A. - q 2

Step-by-step solution

Potential energy of the system aligned U = KQq 1 + Kq ² 1 + KqQ 1 =0 Kq 1 ( Q + q + Q ) &=0 Q &=- q 2 aligned

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