A) v and B are in the same direction
B) v and B are in opposite directions
C) v and B are perpendicular
D) v and B are at an angle of \[45{}^\circ \]
Correct Answer: C
Solution :
Lorentz force \[F=\left( v\times B \right)\] or \[\left| F \right|=qvB\sin \theta \] F will be maximum. when \[\theta ={{90}^{o}}\]
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