A) E is perpendicular to B
B) E is parallel to v and perpendicular to B
C) E, B and v are mutually perpendicular and \[v=\frac{E}{B}\]
D) E and B both are parallel to v
Correct Answer: C
Solution :
In this case \[|\overrightarrow{{{F}_{e}}}|\ =\ |\overrightarrow{{{F}_{m}}}|\] and both forces are opposite to each other.
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