Question

a long wire carries a current toward the east in a magnetic field that is directed vertically upward, 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 the fingers of your right hand in the direction of the current (east) and curl them towards the direction of the magnetic field (vertically upward). Your thumb will point in the direction of the magnetic force on the current - carrying wire.

Answer:

south