Using Electricity

A wire is wound around a card board tube to form what is called a solenoid. Leave the ends of the wire so that, they can be connected to a source of power such as a battery in an electrical circuit.

The material to be magnetized is placed in the solenoid and the current is switched on for a short time. The needle is then taken out and some pins are brought close to it.

Observation:

The pins become attracted to the needle for some time.

Discussion:

This shows that the needle becomes magnetized so, the pins were attracted.

Conclusion:

Magnets can also be made using electricity.