Answer:
See explanation
Explanation:
A magnetic field refers to the region in space where the influence of the magnet is felt.
An electromagnet is made up of a length of wire wound around a core to form a coil and then connected to a source of current.
There are certain ways to increase the strength of an electromagnet. These include;
- wrapping the coil around a piece of iron
- increasing the number of turns of the coil
- increasing the current that passes through the core
