Examples: Electromagnets work by passing electricity through a wire ... Like poles repel (North-North or South-South). But why do magnets attract and repel each other? This force is due to tiny ...

That means we can transmit energy great distances in its electrical form and, when it arrives at its destination, change it into its mechanical form to do work. View the illustrated instructions ...

To do that, they take advantage of the properties ... stop as the opposing poles lock into magnetic attraction. By using electromagnets, which use an electric current to create an electromagnetic ...