(a) Define electric potential energy of a system consisting of two point charges. (b)…
PHYSICS · Subjective · CBSE · Physics · Electrostatic Potential and Capacitance · Electrostatic Potential and Capacitance
Problem
(a) Define electric potential energy of a system consisting of two point charges.
(b) Starting from the definition of work done in assembling the charges from infinity, obtain an expression for the potential energy when charges q1 and q2 are kept a distance r apart in vacuum.
(c) Explain how the sign of the potential energy depends on the nature of the two charges and state its physical implication.