6.15 understand that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it and describe the factors which affect the size of the induced voltage

6.15 understand that a voltage is induced in a conductor or a coil when it moves through a magnetic field or when a magnetic field changes through it and describe the factors which affect the size of the induced voltage

If we move a wire across a magnetic field at right angles, a voltage is induced in the wire. This phenomenon is called electromagnetic induction.
The size of the induced voltage can be increased by:

1. moving the wire more quickly
2. using a stronger magnet
3. wrapping the wire into a coil so that more pieces of wire move through the magnetic field.