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
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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