This is a very interesting site for physics and electrical engineering students. Beginning with their history, this site explains concepts of capacitors or condensors. Definition and formulae concerning capacitors are given. Concepts of dielectric and dielectric constants are explained and the dielectric constants of popular metals are also given. Also featured are pictures of different types of capacitors with their explanation. For students who want to broden their horizon, suggestions for further reading are provided at the bottom of the page.