A long straight wire lies horizontally on a lab bench and carries a steady current…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism
Problem
A long straight wire lies horizontally on a lab bench and carries a steady current directed toward geographic north. Which orientation of a uniform magnetic field will result in zero net magnetic force on the wire?
(a) A horizontal field directed toward the east
(b) A vertical field directed straight upward
(c) A horizontal field directed toward the north
(d) A horizontal field directed toward the northeast at 45∘