Question
Why did the compass needle move when the wire was connected to the battery?
the compass needle is attracted to electricity
the current-carrying wire created a magnetic field
the compass needle is attracted to electricity
the current-carrying wire created a magnetic field
Answers
GPT-4o mini
The correct explanation for why the compass needle moved when the wire was connected to the battery is:
**The current-carrying wire created a magnetic field.**
When an electric current flows through a wire, it generates a magnetic field around it. This magnetic field interacts with the compass needle, which is itself a small magnet. As a result, the compass needle aligns itself with the magnetic field generated by the current in the wire, causing it to move. This phenomenon is a fundamental principle of electromagnetism.
**The current-carrying wire created a magnetic field.**
When an electric current flows through a wire, it generates a magnetic field around it. This magnetic field interacts with the compass needle, which is itself a small magnet. As a result, the compass needle aligns itself with the magnetic field generated by the current in the wire, causing it to move. This phenomenon is a fundamental principle of electromagnetism.