Q. 44.5( 2 Votes )
Which of the following particles will describe the smallest circle when projected with the same velocity perpendicular to a magnetic field?
In the options given election has a lowest charge.
Electron < Proton < He+ <Li++
Formula used: The magnetic force is given by
Where F is magnetic force
q is electric charge =
v is velocity
m is mass of the charge particle
v is velocity
r is radius of the projectile motion
Here v and B are constants and q is same for all the charge particles. r is proportional to m. If radius is small radius will become small. Electron exhibits light weight among the all other charge particles. Because of light weight it will creates a circle with a small radius when it is projected. So option A is correct.
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