A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the center:
1
increases as r increases for r < R and for r > R
2
zero as r increases for r < R, decreases as r increases for r > R
3
zero as r increases for r < R, increases as r increases for r > R
4
decreases as r increases for r < R and for r > R