Question

name the method of preparing electromagnets ​

Answer 1

Answer:

Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail. In some cases, the nail will remain magnetised even when removed from within the wire coil.

Answer 2

Answer:

To made the preparation of electronmagbet you need a source of electricity a conductor and metal.wrap insulated copper wire tightly around an iron/screw .

Before you are connecting the wire to battery u need to watch that as u r electromagnet picks up small objects.