Question

a long wire carries a current toward the north in a magnetic field that is directed vertically downward perpendicular to the surface of earth. what is the direction of the magnetic force on the wire? west north east south no magnetic force is exerted on the wire.

Explanation:

Step1: Apply right - hand rule

Point your thumb in the direction of the current (north), and your fingers in the direction of the magnetic field (vertically downward). Your palm will point in the direction of the magnetic force.

Step2: Determine the direction

By the right - hand rule, the magnetic force is directed east.

Answer:

east