Q 12-04-069JEE MainJEE Main 2024 (4 Apr, Shift 1)Easy
An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then
Answer: (A) the electron will continue to move with uniform velocity along the axis of the solenoid.
The field inside the solenoid is along its axis, parallel to the electron's velocity. So $\vec F = -e(\vec v\times\vec B) = 0$ and the electron keeps moving with uniform velocity along the axis.
Solution by Sreeraj P, M.Sc Physics