8.02 Lecture Notes - Lecture 1: Surface Charge, Applet, Equipotential
Document Summary
A point charge +q is placed inside a hollow cavity of a conductor that carries a net charge +q. The charged metal slab applet: non-zero charge placed in metal slab. Charging by induction, exterior of a neutral metallic box. The electric eld is perpendicular to the surface. Charge placed outside induced charge separation on the outside. Electric field on the surface of a conductor. Apply gauss"s law: e a = a/ > e = / . Group problem: metal spheres connected by a wire. Two conducting spheres 1 and 2 with radii r and r are connected by a thin wire. You may assume that the spheres are very far apart so that the charge distributions on the spheres are uniform. As the charge is moved around inside, the surface charge density on the outside is initially uniform and does not change when the charge is moved. A point charge +q is placed inside a neutral, hollow, spherical conductor.
