Self Assessment Quiz

1. A charge q is located at  and a second charge  at  above an infinite grounded conducting plane occupying  the xy plane at . Calculate the force exerted on the charge q.

2. A point charge  is located at a distance d above a grounded,  infinite,  conducting plane. A second charge  is free to move along the perpendicular from the position of the charge q on to the plane. Where should this charge –q be placed so that the net  force on it is zero?