The electrostatic potential at a point is equal to the work needed

Options :
  1. in bringing a unit positive charge from the surface of earth to that point
  2. in bringing a unit positive charge from infinity to that point
  3. in bringing a unit negative charge from infinity to that point
  4. in bringing a unit negative charge from the surface of earth to that point
Answer and Explanation :-

Answer: Option 2

Explanation:

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