An electron moves with a speed of 3.0 × 104 m/s perpendicular to a uniform magnetic field of 0.40 T. What is the magnitude of the magnetic force on the electron?
A)
4.8 × 10-14 N
B)
1.9 × 10-15 N
C)
5 × 10-20 N
D)
2.2 × 10-24 N
E)
zero
B
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