JEE MainPhysicsModerateMoving charges and

An electron gun is placed inside a long solenoid of radius R on
its axis. The solenoid has n turns/length and carries a current I. The
electron gun shoots an electron along the radius of the solenoid with
speed
v. If the electron does not hit the surface of the solenoid, maximum
possible value of v is (all symbols have their standard meaning)

Show answer and solution

R_{\max} = \frac{R}{2} = \frac{mv_{\max}}{e\mu_{0}in}

V_{\max} = \frac{Re\mu_{0}in}{2m}

Source: Grass-G / P-17 Physics paper 26 Nov Second.docx

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