1.

A spherical shell and a solid sphere, made up of same material and having same radii, are charged to their maximum capacity. If charges on their surfaces are respectively, q_(1)and q_2 then ......

Answer»

`q_(1) lt q_(2)`
`q_(1) GT q_(2)`
`q_(1) = q_(2)`
NOTHING can be said

Solution :Here, electric field on the surface of shell and sphere can have its MAXIMUM value equal to dielectric strength of air which is CONSTANT, say E.. Then,
`(E_(1))_("max") = (E_(2))_("max") = E.`
`therefore (kq_(1))/(R_(1)^(2)) = (kq_(2))/(R_(2)^(2))`
`therefore q_(1) = q_(2)` (`therefore` Here `R_(1) =R_(2)`)


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