An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then :
A
the electron will be accelerated along the axis.
B
the electron will continue to move with uniform velocity along the axis of the solenoid.
C
the electron path will be circular about the axis.
D the electron will experience a force at $45^{\circ}$ to the axis and execute a helical path.
JEE MAIN 2024, Diffcult
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B
the electron will continue to move with uniform velocity along the axis of the solenoid.
b Since $\vec{v} \| \vec{B}$ so force on electron due to magnetic field is zero. So it will move along axis with uniform velocity.
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