Ellie made an electromagnet with wire, a nail, and a 2.5-volt battery. The electromagnet attracted a paper clip from 2 inches away.

Question

What actions will make the electromagnet stronger?

a. She can use a thicker piece of wire.

b. She can use a higher-voltage battery.

c. She can wrap the wire more times around the nail.

d. She can decrease the number of coils around the nail

Answer 1

Possible answers:

a. She can use a thicker piece of wire.
b. She can use a higher-voltage battery.
c. She can wrap the wire more times around the nail.