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A non-conducting sphere of radius R has ...

A non-conducting sphere of radius `R` has a spherical cavity of radius `R//2` as shown. The solid part of the sphere has a uniform volume charge density `rho`. Find the magnitude and direction of electric field at point (a) O and (b) A.

A

`(-rhoR)/(6 epsilon_0) , (-rhoR)/(6 epsilon_0)`

B

`(-rhoR)/(6 epsilon_0) , 0`

C

`0 , (-rhoR)/(6 epsilon_0)`

D

`0 , 0`

Text Solution

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The correct Answer is:
A
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