An Electron Moves with a Speed of 5

Multiple Choice

An electron moves with a speed of 5.0 × 10⁴ m/s perpendicular to a uniform magnetic field of magnitude 0.20 T. What is the magnitude of the magnetic force on the electron? (e = 1.60 × 10^-19C)

A) 4.4 × 10^-14 N
B) 1.6 × 10^-15 N
C) 5 × 10^-20 N
D) 2.6 × 10^-24 N
E) zero