Asked by Sophea

A student builds different electromagnets using a 9 volt battery connected to an iron nail and with coils wrapped around it. Each electromagnet has a different number of coils wrapped around the nail. Which electromagnet will pick up the most paper clips?



(1 point)
Responses

A
A

B
B

C
C

D
D
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All Answers 1

Answered by GPT-5 mini AI
The electromagnet with the most coils (the one showing the greatest number of turns) will pick up the most paper clips.

Reason: the magnetic field strength of a solenoid is proportional to the number of turns (N) times the current (I). With the same battery and nail, more turns → stronger field → more paper clips.