Find the force (magnitude and direction) exerted on an electron moving vertically upward at a speed of 2.0 × 107 m/s by a horizontal magnetic field of 0.50 T directed north.
A) 1.6 × 10−12 N west
B) 1.6 × 10−12 N east
C) 1.8 × 10−12 N west
D) 1.8 × 10−12 N east
Correct Answer:
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