Which of the following particles will describe the smallest circle when projected with the same velocity perpendicular to a magnetic field?
Answers
Hey given "Which of the following", then it should have some options.
Where are they??
Answer: I think u wanted to know this only...
Which of the following particles will describe the smallest circle when projected with the same velocity perpendicular to a constant magnetic field?
A. Electron
B. Proton
C. He+
D. Li+
I HOPE iT WiLL HeLp U :}
Explanation:In the options given election has a lowest charge.
Electron < Proton < He+ <Li++
Formula used: The magnetic force is given by
F = qvBsinФ ( here Ф= 90°, sin90°= 1)
Where F is magnetic force
q is electric charge =
1.6×10∧-19
v is velocity
B is magnetic field
F=mv^2/r
m is mass of the charge particle
v is velocity
r is radius of the projectile motion
mv^2/r = qvB
mv^2 = rqvB
mv = rqB
r = mv/qB
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.