Question
Students conduct another investigation using insulated wire and a steel nail. They increase the number of coils to 50 and add a third battery. Which BEST describes what happens to the magnetic field?
A.
The magnetic field becomes weaker, decreasing the number of paper clips.
B.
The magnetic field becomes stronger, increasing the number of paper clips.
C.
The increase in coils and battery cancels each other out, resulting in no magnetic field.
D.
The increase in coils interferes with the third battery, resulting in a weaker magnetic field
A.
The magnetic field becomes weaker, decreasing the number of paper clips.
B.
The magnetic field becomes stronger, increasing the number of paper clips.
C.
The increase in coils and battery cancels each other out, resulting in no magnetic field.
D.
The increase in coils interferes with the third battery, resulting in a weaker magnetic field
Answers
GPT-4o mini
The best answer is:
**B. The magnetic field becomes stronger, increasing the number of paper clips.**
Increasing the number of coils of insulated wire around the steel nail enhances the magnetic field, and adding a third battery increases the current flowing through the wire. Both of these changes would contribute to a stronger magnetic field, which would improve the magnet's ability to pick up paper clips.
**B. The magnetic field becomes stronger, increasing the number of paper clips.**
Increasing the number of coils of insulated wire around the steel nail enhances the magnetic field, and adding a third battery increases the current flowing through the wire. Both of these changes would contribute to a stronger magnetic field, which would improve the magnet's ability to pick up paper clips.