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Question : 13
Total: 26
(a) Write the expression for the magnetic force acting on a charged particle moving with velocity v
(b) A neutron, an electron and an alpha particle moving with equal velocities, enter a uniform magnetic field going into the plane of the paper as shown. Trace their paths in the field and justify your answer.
(b) A neutron, an electron and an alpha particle moving with equal velocities, enter a uniform magnetic field going into the plane of the paper as shown. Trace their paths in the field and justify your answer.
Solution:
(a) Expression for the magnetic force
(b) Trace of paths Justification
(a)
= q (
×
)
(Give Full credit of this part even if a student writes:
F = q V B s i n θ and
Force( F )
(b)
Justification : Direction of force experienced by the particle will be according to the Fleming's Left hand rule/(any other alternative correct rule.)
(b) Trace of paths Justification
(a)
(Give Full credit of this part even if a student writes:
Force
(b)
Justification : Direction of force experienced by the particle will be according to the Fleming's Left hand rule/(any other alternative correct rule.)
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