a large solid sphere with uniformly distributed positive charge has a smooth narrow tunnel through its centre. A small particle with negative charge, initially at far from the sphere, approaches it along the line of the tunnel, reaches its surface with a speed u, and pass through the tunnel . Its speed at the centre ofthe sphere will be :

a large solid sphere with uniformly distributed positive charge has a

1.	a large solid sphere with uniformly distributed positive charge has a smooth narrow tunnel through its centre. A small particle with negative charge, initially at far from the sphere, approaches it along the line of the tunnel, reaches its surface with a speed u, and pass through the tunnel . Its speed at the centre ofthe sphere will be :
Answer» 0 u `SQRT(2V)` `sqrt(1.5v)` ANSWER :D

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