Question

write an experiment on how to prepare electromagnet from iron nail​

Answer 1

Take a 9v battery , some copper wire and a iron nail (make sure that the nail is not rusted.)

Explanation:

Take the copper wire and wrap it around the nail , take the battery and put the North and south pole of the nail with the battery wire. The electric charge around the nail creates electromagnetic force.

take a metal object near the nail it will attract the object , if you take away the battery wire the object will fall down.