Question

Ramesh wants to increase the strength of his
electromagnet. Which of the following can he do to
make the electromagnet stronger?
I. Increase the number of times the magnet is stroked.
II. Increase the number of batteries.
III. Increase the number of coils used around the
electromagnet.
IV. Change the thickness of the wire.​

Answer 1

Answer:

lll. Increase the number of coils used around the electromagnet

Answer 2

Explanation:

3)increase the number of colis used around the electromagnet