Question

1. what happens to a current - carrying wire in a magnetic field if the current is reversed? (1 point)

the wire will be deflected parallel to the magnetic field in the opposite direction.
the wire will be deflected parallel to the magnetic field in the same direction.
the wire will be deflected perpendicular to the magnetic field in the same direction.
the wire will be deflected perpendicular to the magnetic field in the opposite direction.

Explanation:

When a current - carrying wire is in a magnetic field, the direction of the force on the wire is given by the right - hand rule. The force is perpendicular to both the magnetic field and the current direction. If the current is reversed, using the right - hand rule again, the direction of the force (and thus the deflection of the wire) will be opposite. The force is always perpendicular to the magnetic field (not parallel).

Answer:

The wire will be deflected perpendicular to the magnetic field in the opposite direction.