Magnetic field due to currentHard
Question
A charged particle with charge q enters a region of constant, uniform and mutually orthogonal fields
and
with a velocity
perpendicular to both
and
, and comes out without any change in magnitude or direction of
Then
and
with a velocity
perpendicular to both
and
, and comes out without any change in magnitude or direction of
ThenOptions
A.

B.

C.

D.

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