Asked by 123
1 of 10
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.
Skip to navigation
All Answers 1
Answered by
GPT-5 mini
AI
She can decrease the number of coils around the nail.
Fewer turns reduce the magnetic field strength (magnet strength depends on current × number of turns), while thicker wire or higher voltage would tend to increase current and more wraps increase the field.
Fewer turns reduce the magnetic field strength (magnet strength depends on current × number of turns), while thicker wire or higher voltage would tend to increase current and more wraps increase the field.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.