Ellie made an electromagnet with wire, a nail, and a 2.5-volt battery. The electromagnet attracted a paper clip from 2 inches away.
What actions will make the electromagnet stronger?
She can use a thicker piece of wire.
She can use a higher-voltage battery.
She can wrap the wire more times around the nail.
She can decrease the number of coils around the nail.
1 answer
She can use a nail made of a material that is more easily magnetized.