A point charge is held at a height above a large earthed conducting plane
PHYSICS · Multi-part · Fermi University Physics · Electricity, Magnetism & Electromagnetism · Conductors, capacitance and boundary-value electrostatics · Conductors, capacitance and boundary-value electrostatics
The Boundary-Value Problem, Ch Uniqueness, images and the Green function of a region
Problem
A point charge q=4.0nC is held at a height d=5.0mm above a large earthed conducting plane. The plane is idealised as infinite and the charge as a point.
((a)) Find the surface charge density induced on the plane directly beneath the charge.
((b)) Find the force on the charge, stating its direction.