A charge q is placed at point O (please refer diagram in attachment) in the cavity in a spherical uncharged conductor. Point S is outside. If q is displaced from O towards S(q still remains inside the cavity) then which of the following is correct:
Electric field at S will:
3. First increaseand then decrease
4. will not change
The Attempt at a Solution
How to do this....please help me to get started.....