Charging an insulated conducting sphere by Induction
- As the charged rod appoaches the sphere, the negative charges on
the sphere are attracted toward the rod and the positive charges are
repelled. Note that the sphere still has a net charge of zero. (It is
- When the sphere is grounded by a wire, electrons move up from the
earth and give the sphere a net negative charge.
- The grounding wire is removed first and then the charged rod is
removed leaving the sphere with a net charge.
Back to John's Homepage