When a magnet is suspended and free to rotate, where does its north pole point?

How does electromagnetic induction occur?

Which device converts electrical energy into mechanical energy?

What is the basic principle behind the operation of an electric motor?

What is the main difference between an AC generator and a DC generator?

The strength of the magnetic field produced by a current-carrying wire depends on:

What happens to the direction of the induced current when the orientation of the magnet or coil is reversed?

A generator can be turned into a motor by:

The strength of an electromagnet can be increased by:

What type of magnet is induced when electricity flows through a coil of wire?

A solenoid with more turns of wire produces

What happens to the strength of the magnetic field inside a solenoid when the current passing through it is increased?

Which of the following materials is most commonly used as a core for electromagnets?