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A point charge q of mass m is placed at the centre of a fixed ring of charge Q and radius R. What minimumvelacity (along the axis of ring) should be give to q so that it would reach far away from ring if () q is positive(ii)g is negative

Answer» A point charge q of mass m is placed at the centre of a fixed ring of charge Q and radius R. What minimumvelacity (along the axis of ring) should be give to q so that it would reach far away from ring if () q is positive(ii)g is negative


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