Avertical wire carries a current vertically upward in a region where the magnetic field vector points toward the north. what is the direction of the magnetic force on this current due to the field?

West

Explanation:

We can solve the problem by using the right-hand rule. We can apply the rule as follows:

- Index finger: direction of the current

- middle finger: direction of the magnetic field

- thumb: direction of the force exerted on the wire

By applying the rule to this situation, we have:

- index finger: upward (current)

- middle finger: north (magnetic field)

- thumb: west (force)

So, the direction of the force exerted on the wire is to the west.