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An electron is projected with uniform velocity along the axis of a current carrying Long solenoid. Which of the following is true?                                                                                                          [NCERT EXEMPIAR]

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.