## What to Remember from Lesson

1. A changing magnetic influence can create an electric current, while a stationary magnetic influence cannot. This is called induction and the historical name is Faraday's law.

2. This is to go along with Oersted's discovery that an electric current creates a magnetic influence.

3. Mechanical energy can be derived from electrical energy and motors do that. Likewise, mechanical energy can create electrical energy and generators do that.