The action that will make the electromagnet weaker is:
• She can decrease the number of coils around the nail.
Reducing the number of coils will decrease the strength of the magnetic field generated by the electromagnet.
Ellie made an electromagnet with wire, a nail, and a 2.5-volt battery. The electromagnet attracted a paper clip 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