A hallow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre:

Options

A. decreases as r increases for rltR and rgtR
B. increases as r increases for r lt R and r gt R
C. zero as r increases for r lt R, decreases as r increases for r gt R
D. zero as r increases for r lt R, increases as r increases for r gt R

Answer

C

Explanation

Electric field of hollow sphere is as follows :
E=0 for r < R
`E=Q/(4piepsilon_0r^2)` for r > R