Question

1. how would you describe the magnetic field produced by a current in a straight wire? (1 point)

the lines of force run perpendicular to the wire
the lines of force run parallel to the wire
the lines of force form circles around the wire

Explanation:

When a current flows through a straight wire, it creates a magnetic field. According to the right - hand rule (for a straight current - carrying wire), the magnetic field lines form concentric circles around the wire.

• If the lines of force were perpendicular to the wire, there would be no circular pattern as observed in experiments and predicted by the laws of electromagnetism.
• If the lines of force were parallel to the wire, it would not account for the rotational (circular) nature of the magnetic field around the wire.

Answer:

The lines of force form circles around the wire.