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A non-conducting solid sphere of radius ...

A non-conducting solid sphere of radius R is uniformly charged. The magnitude of the electric filed due to the sphere at a distance r from its centre

A

(a) increases as r increases, for `rltR`.

B

(b) decreases as r increases, for `0ltrltoo`.

C

(c) decreases as r increases, for `Rltrltoo`.

D

(d) is discontinuous at `r=R`.

Text Solution

Verified by Experts

The correct Answer is:
A, C
KEY CONCEPT: The expressions of the electric field inside the sphere `(rltR)` `E=(1)/(4piepsilon_0)*(Qq)/(R^3)r`, outside the sphere
`(Rlt rlt oo)E=(1)/(4piepsilon_0)*(Q)/(r^2)`

Hence, E increases for rltR and decreases for `Rltrltoo`.
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