A 2 m wire carries 5 A perpendicular to a 0.5 T field. What magnetic force acts on it?

A) 5 N

B) 2.5 N

C) 7.5 N

D) 10 N

Answer: A

Explanation: Use magnetic force = field × current × length at 90° for the stated idealized conditions. Substitution gives 0.5 × 5 × 2 = 5 N.

Scroll to Top