Three charges q1, q2 and q3 are placed at the vertices of an equilateral triangle
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Answer: The correct option is A
Explanation:
- The net external force acting on the system of three charges is 0 if q1=q2=q3
- Since external force is 0, the rate of change of momentum is 0, so momentum is a conserved quantity here.
- There is no displacement of charges in the system, So there is no work done to move the charges, therefore mechanical energy is conserved.
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