With the help of an activity explain the making of an electromagnet.
Materials required: A large iron nail, thin coated copper wire, a low voltage dry cell,
some paper clips, switch, electrical tape.
- Wind the wire tightly around the nail so that you have at least 25 turns. Keep the turns close together and always wind in the same direction. Try not to overlap the wires.
- Remove the insulation from the ends of the wire and attach one end of the wire to one end of the battery and the other end of the wire to the other end of the battery through a switch.
- Close the circuit by closing the switch.
- The electromagnet is ready.