7.12 The Magnetic Force

Electromagnets

The relationship between electric current and magnetism is discussed as well as how to build an electromagnet. Duration: 4:22.

Mobile Link: http://bcove.me/7w5bigrp

Magnetism

Paul Hewitt talks about the discovery of the relationship between electricty & magnetism. Duration: 2:00.

Mobile Link: http://bcove.me/kto2d5fc