An electric field of 3.0 kV/m is perpendicular to a magnetic field of 0.20 T. An electron moving in a direction perpendicular to both E and B is not deflected if it has a velocity of
A) 6 km/s.
B) 9 km/s.
C) 12 km/s.
D) 15 km/s.
E) 6.7 m/s.
Correct Answer:
Verified
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