A charge q is uniformly distributed on a ring of radius r . A sphere of an equal radius is constructed with its centre lying on the periphery of the ring. The flux of electric field through the surface of the sphere

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Correct answer: C. ((q)/(3 _0))

Charge on ring q , centre of ring =O Centre of sphere =O^ Linear charge density of ring, λ=(q)/(2 π a) Charge on arc A B of ring, aligned & q_ A B =λ(arc A B)=(1)/(2 π a) · q · (2 π a)/(3) & q_ A B =q / 3 aligned i.e., charge enclosed by sphere =q / 3 Flux coming out of sphere =q / 3 _0 .

A charge q is uniformly distributed on a ring of radius r . A...

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