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Eight charges each of value q each are p...

Eight charges each of value q each are placed on a ring of radius R placed in x-y plane with origin at centre -q charge having mass m is projected from `z = oo` towards the centre of the ring with velocity v. The velocity of -q when it reaches the centre of ring is (neglect gravity)-

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Eight charges each of value q are placed on a ring of radius R placed in x - y plane with origin at centre . A - q charge having mass m is projected from z=oo towards the centre of the ring with velocity v . The velocity of - q when it reaches the centre of ring is (neglect gravity)

Eight charges each of value q are placed on a ring of radius R placed in x - y plane with origin at centre . A - q charge having mass m is projected from z=oo towards the centre of the ring with velocity v . The velocity of - q when it reaches the centre of ring is (neglect gravity)

Eight charges each of value q are placed on a ring of radius R placed in x - y plane with origin at centre . A - q charge having mass m is projected from z=oo towards the centre of the ring with velocity v . The velocity of - q when it reaches the centre of ring is (neglect gravity)

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