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A charged particle is released from rest...

A charged particle is released from rest in a region of steady and uniform electric and magnetic fields which are parallel to each other . The particle will remove in a

A

straight line

B

circle

C

helix

D

cycloid

Text Solution

Verified by Experts

The correct Answer is:
a
`F_E=qE` (Force due to electric field)
`F_B=evBsin theta =qvBsin0=0` (Force
due to magnetic field)
Force due to electric field will make will make
the charged particle released from rest
to move in the staright line (that of
electric field). Since the force due to magnetic field is zero.
therefore the charged particle will move in a straight line.
`:.` (a) is the correct option.
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