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A point charge q of mass M is located at the centre of a ring having radius R and charge Q. When it is

A point charge q of mass M is located at the centre of a ring having radius R and charge Q. When it is displaced slightly, the point charge accelerates along the x-axis to infinity. Find the ultimate speed of the point charge 2KQq MR (1) (2) (3) KQq MR KQq V2MR (4) Zero

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