A beam of electrons travels due east through a small region where a uniform electric…
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism
Problem
A beam of electrons travels due east through a small region where a uniform electric field of 1500NC−1 points due north. A uniform magnetic field of appropriate magnitude is applied so that the electrons continue in a straight line without deflection. Which orientation of the magnetic field will satisfy this condition?
(a) Vertical and downward
(b) Horizontal and toward the north
(c) Vertical and upward
(d) Horizontal and toward the west