Question

In bringing an electron towards another electron, the electrostatic potential energy of the system :

• A. decreases
• B. increases
• C. remains same
• D. becomes zero

Answer 1

Answer: (B)

The electron has negative charge. When an electron is approaching towards another electron, then due to same negative charge repulsive force is produced between them. So, to bring them closer a work is done against this repulsive force. This work is stored in the form of electrostatic potential energy. Thus, electrostatic potential energy of system increases