Home
Class 12
PHYSICS
A solid sphere of radius R has a charge ...

A solid sphere of radius R has a charge Q distributed in its volume with charge density `rho = k r ^(2)` where kanda are constants and r is the distance from its center. If the electric field at r=R/2 is 1/16 times that at r=R, find value of a.

A

2

B

1

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

The radius of a sphere is 2r. Then its volume will be

A spherical shell of radius R has a charge +Q units. The electric field due to the shell at a point

For current entering at A, the electric field E(r at a distance r form A

A sphere of charge of radius R has uniform volume charge density. The electric field due to the sphere of charge at a point

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

A thin metallic spherical shell of radius R carries a charge Q on its surface. A point charge Q/2 is placed at its centre C and another charge +2Q outside the shell at a distance r from the centre as shown in figure. Find the electric flux through the shell.

A thin metallic spherical shell of radius R carries a charge Q on its surface. A point charge Q/2 is placed at its centre C and another charge +2Q outside the shell at a distance r from the centre as shown in figure. Find the force on the charge at the centre of shell and at point A.

A ring of radius R is uniformly charged by + Q charge. Find potential at an axial point, which is situated at distance r from the centre and hence deduce electric field.

How does electric field at a point change with distance r from an infinite thin sheet of charge?