Q. When one electron is taken towards the other electron, then the electric potential energy of the system
A) Decreases
B) Increases
C) Remains unchanged
D) Becomes zero
Explanation
(b) Potential energy of the system will be given by
$= \frac{( - e)( - e)}{4\pi\varepsilon_{0}r} = \frac{e^{2}}{4\pi\varepsilon_{0}r}$
As $r$ decreases, potential energy increases
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.