Jade has an iron rod around which she wraps copper wire. She places the device on a table near a compass. What will she observe about the compass if she sends current through the copper wire?

Question

options:

The needle of the compass will show no effect.
The needle of the compass will show no effect.

The needle of the compass will point toward the device.
The needle of the compass will point toward the device.

The needle of the compass will stop working.
The needle of the compass will stop working.

The needle of the compass will spin in circles.

Answer 1

When Jade sends current through the copper wire wrapped around the iron rod, the wire will create a magnetic field due to the flow of electric current. This magnetic field can influence the compass nearby.

The most appropriate observation to expect would be:

The needle of the compass will point toward the device.

This happens because the magnetic field generated by the current will interact with the magnetic needle of the compass, causing it to reorient itself in response to the magnetic field created by the current-carrying wire.