Published by:
CGP EDU Academic Team
Published on: August 13, 2026
PART-I PHYSICS
There is a long solenoid of radius 
having 
turns per unit length with current flowing in it. A particle having charge 
and mass 
is projected with speed 
in the perpendicular direction of axis from a point on its axis. Find maximum value of 
so that it will not collide with the solenoid.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Looking at the cross-section of the solenoid, 
of the particle's motion has to be 
for it not to strike the solenoid.
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