In bringing an electron towards another electron, the electrostatic potential energy of the system:
Correct answer: A. Increases
- A. Increases
- B. Remains the same
- C. Decreases
- D. Becomes zero
Explanation
Since two electrons have like (negative) charges, they repel each other. To bring them closer, work must be done against this repulsive force. This work is stored as an increase in the electrostatic potential energy of the system.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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