Question

1. How will you make an electromagnet in the laboratory?​

Answer 1

Explanation:

at first rub off the dirt or rust on the surface of the iron nail.then wrap around the copper wire on the iron nail for 75-100 rounds.connect the both ends of the wrapped copper wire with the positive and negative terminals of the battery.then the iron nail will become an electromagnet.

Answer 2

At first rub off the dirt or rust on the surface of the iron nail. Then wrap around the copper wire on the iron nail for 75-100 rounds. Connect the both ends of the wrapped copper wire with the positive and negative terminals of the battery. Then the iron nail will become an electromagnet.

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I hope it help you