A positive charge q is placed in front of a conducting solid cube at a distance d from its center. Find the electric field at the center of the cube due to the charges appearing on its surface.

Question

Philoid · Accepted Answer

Given:
Charge placed in front of a solid cube: +q
Distance between the charge and the center of the cube: d

Formula used:
Formula for electric field is:
Here, k is a constant and k= =9× 10⁹ Nm²C^-2 . q is the point charge and r is the distance between the charge and the point of influence.
Since we have to find electric field at the center of the cube

Hence, electric field at the center of the cube due to a positive charge at a distance d from the center of cube is
.