Question

Camila is performing an investigation in which she wraps a current-carrying wire around an iron rod. She places the north pole of a bar magnet near the top of the rod. The magnet moves away from the rod. Camila claims that a field exists between the rod and the magnet.


Which argument best supports Camila’s claim?

(1 point)
Responses

The current in the wire has created a magnetic field with its north pole at the top of the rod.
The current in the wire has created a magnetic field with its north pole at the top of the rod.

The current in the wire has created a magnetic field with its south pole at the top of the rod.
The current in the wire has created a magnetic field with its south pole at the top of the rod.

The current in the wire has created a gravitational field with its north pole at the top of the rod.
The current in the wire has created a gravitational field with its north pole at the top of the rod.

The current in the wire has created a gravitational field with its south pole at the top of the rod.
The current in the wire has created a gravitational field with its south pole at the top of the rod.
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Answer 1

The correct response that best supports Camila's claim is:

The current in the wire has created a magnetic field with its north pole at the top of the rod.

This is because the movement of the bar magnet away from the rod suggests that there is an interaction between the magnetic field created by the current in the wire and the magnetic field of the magnet. According to the right-hand rule, when a current flows in a wire in a specific direction, it creates a magnetic field around the wire. This magnetic field can interact with the magnetic field of the magnet, causing it to repel or move away from the rod. Therefore, the presence of movement suggests that a magnetic field exists between the rod and the magnet.