Questions
A beam of protons with a velocity of enters a uniform magnetic field of The velocity makes an angle of 60° with the magnetic field. Find the radius of the helical path taken by the proton beam
detailed solution
Correct option is A
The components of the proton’s velocity along and perpendicular to the magnetic field are
And
As the force is perpendicular to the magnetic field, the component will remain constant. In the plane perpendicular to the field, the proton will describe a circle whose radius is obtained from the equation
Or
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