Question

explain the prepration of electromagnet

Answer 1

Answer:

place a soft iron core in a current carrying solenoid

and your temporary electromagnet is ready

Answer 2

Answer:

To make a strong electromagnet, wrap wire around an iron core. This large electromagnet is used to pick up and move scrap metal. It consists of a coil of wire surrounding an iron core. When current flows through the wire, a very large magnetic field is generated.

Explanation:

An electromagnet is a magnet that runs on electricity. Unlike a permanent magnet, the strength of an electromagnet can easily be changed by changing the amount of electric current that flows through it. ... An electromagnet works because an electric current produces a magnetic field.