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 action will make the electromagnet weaker?
(1 point)
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
Increasing the number of coils around the nail will make the electromagnet weaker, as there will be less current flowing through each loop of wire.