Electromagnets, Motors and Generators

Front

What is electromagnetic induction?

Back

The process of creating a current in a circuit by changing a magnetic field.

Front

What is produced when a magnet moves through a coil of wire?

Back

An electric current.

Front

What surrounds a wire when electric current is flowing through it?

Back

A magnetic field.

Front

How can the strength of an electromagnet be increased?

Back

By increasing the amount of current flowing through the wire.

Front

What is the transfer of energy in a generator?

Back

Mechanical to Electrical.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What is the function of an electric motor?

Back

To convert electrical energy into mechanical energy.

Front

What is the function of an electric generator?

Back

To convert mechanical energy into electrical energy.

Front

What is a solenoid?

Back

A coil of wire that produces a magnetic field when carrying an electric current.

Front

What happens to the magnetic field when the direction of current in a wire is reversed?

Back

The direction of the magnetic field also reverses.