Electrostatics Question 477
Question: When one electron is taken towards the other electron, then the electric potential energy of the system [RPET 1999; CBSE PMT 1993, 99; Pb. PMT 1999; BHU 2000, 02]
Options:
A) Decreases
B) Increases
C) Remains unchanged
D) Becomes zero
Show Answer
Answer:
Correct Answer: B
Solution:
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.
