Question

suggest any two methods to increase the strength of an electromagnet​

Answer 1

Explanation:

=>The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage.

You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet.

Answer 2

The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage. You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet