An electron is projected with uniform velocity along the axis of a current carrying long solenoid. Which of the following is true?
Options:
(a) The electron will be accelerated along the axis.
(b) The electron path will be circular about the axis.
(c) The electron will experience a force at 45° to the axis and hence
execute a helical path.
(d) The electron will continue to move with uniform velocity along the axis of the solenoid.