A solid nonconducting sphere of radius R carries a charge Q distributed uniformly throughout its volume. At a certain distancer1 (r1< R) from the center of the sphere, the electric field has magnitude E. If the same charge Q were distributed uniformly throughout a sphere of radius 2R, the magnitude of the electric field at the same distancer1 from the center would be equal to .

The magnitude of the electric field in the second case will be of the electric field in the first case

Explanation:

The electric field at a distance < R from the center of the sphere is given by

the formula  =  

where R is the radius of the sphere, and, Q is the charge uniformly distributed on the sphere.

It is given that the same charge Q is distributed uniformly throughout a sphere of radius 2R and we have to find the electric field at same distance from the center.

In the second case the electric field will be given by

=

Therefore the magnitude of the electric field in the second case will be of the electric field in the first case.

a. is the answer because they are not shared

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