Question

Explain the method of preparing electromagnet how do you test the poles of an electromagnet with the help of magnet compass

Answer 1

Answer:

A coil is wrapped around a soft iron core and connected to a DC source an I Shaped electromagnet is formed this way. To test the polarities bring a compass and keep it below the magnet. If the current is flowing from South to North the needle will deflect west and if it is flowing from North to South it will deflect towards the east.

Explanation:

Answer 2

Answer:Coil a insulated copper wire around the nail. Connect the ends of the wire to the battery through the the switch. Close the switch so that electric current flows through the copper wire. Now bring the iron pins close to the iron nail. The electromagnet is made

Explanation: