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OJEE Electric Potential — practice questions

3 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.

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Electrostatic potential due to a point charge $q$ at distance $r$ in vacuum is:A thin wire is bent into a circular ring of radius 10 cm. A charge of 250 μC spreads uniformly over it. The elWork done in moving a 6 C charge between two points raises the system's potential energy by 120 J. If the star