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When two like charges are brought together, the potential energy of the system formed will

Physics
WAEC 2012

When two like charges are brought together, the potential energy of the system formed will

  • A. increase because work is done against the field
  • B. increase because work is done by the field
  • C. decrease because work is done by the field
  • D. decrease because work is done against the field
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Correct Answer: Option A
Explanation

if two like charges are close together, they repel each other. moving them closer together requires working against repulsive force which increases the potential energy of the system.

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