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Magentic force and magnetic field

Posted: Fri Aug 06, 2021 11:08 am
by Rahul Mehta
A proton (𝑚=1.67×10−27kg, 𝑞=1.6×10−19C) is accelerated from the rest through a potential difference of 600 V, then injected into a uniform magnetic field. Once in the magnetic field as shown in the figure and it completes half a revolution in 10 nsec.

a)What is the direction and the magnitude of the magnetic field?
b)What is the radius of the orbit?