MagnetismEasy
Question
An electric field E and a magnetic field B applied on a proton which moves with velocity v, it goes unreflected through the region if :-
Options
A.E ⊥ B
B.E is parallel to v and perpendicular to B
C.E, B and v all three mutually perpendicular to each other and v = 
D.E and B both are parallel but perpendicular to v
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