http://www.ck12.org Chapter 15. Electrostatics
FIGURE 15.7
FIGURE 15.8
An electroscope.now that the coin is charged.
If the object is negatively charged, the electrons are repelled and move away from the object. The two leaves now
are negatively charged and still repel each other. Notice that the two leaves have the same charge as the object which
caused the induction. The net charge in the rod and the leaves has not changed. What did change was the distribution
of charges. Electrostatic induction is a process in which the charges of opposite sign (polarity) are separated without
direct contact. We define electrostatic induction more completely below.
Electrostatic induction is an electrostatic redistribution of charges caused by the introduction of a charged object.
No contact is made in the process of electrostatic induction.
http://www.youtube.com/watch?v=tnBjZ66ualU