Question

What would happen if you use an uninsulated copper wire for making an electromagnet?​

Answer 1

The copper wire used in an electromagnet is insulated with a coating of nonconductive insulation like plastic or enamel in order to prevent the current from passing between the wire turns.If uninsulated wire is used the electricity will run across the windings and not make loop after loop and create a magnetic field so no current will be produced.

Answer 2

Answer:

the copper wire is used to make the current flow in loops around the core and not take a shortcut. The coil around the core makes the core magnetised. when the wire is insulated, the current flows in loops and does not take a shortcut.