An electron moves with constant velocity along the axis of a current-carrying straight solenoid. Which statements are correct?
A. The electron will experience magnetic force along the axis of the solenoid.
B. The electron will not experience magnetic force.
C. The electron will continue to move along the axis of the solenoid.
D. The electron will be accelerated along the axis of the solenoid.
E. The electron will follow parabolic path-inside the solenoid.

Question

An electron moves with constant velocity along the axis of a current-carrying straight solenoid. Which statements are correct?

A. The electron will experience magnetic force along the axis of the solenoid.

B. The electron will not experience magnetic force.

C. The electron will continue to move along the axis of the solenoid.

D. The electron will be accelerated along the axis of the solenoid.

E. The electron will follow parabolic path-inside the solenoid.

G1 Physics · Accepted Answer

Inside a long solenoid, B is along its axis. The electron velocity is parallel or antiparallel to B. Magnetic force F = q(v × B) = 0. Therefore it is not accelerated and continues with constant velocity along the axis. Statements B and C are correct.