An electron travels due north through a vacuum in a region of uniform magnetic field that is also directed due north.It will:
A)be unaffected by the field
B)speed up
C)slow down
D)follow a right-handed corkscrew path
E)follow a left-handed corkscrew path

Question

An electron travels due north through a vacuum in a region of uniform magnetic field  that is also directed due north.It will:
A)be unaffected by the field 
B)speed up 
C)slow down 
D)follow a right-handed corkscrew path 
E)follow a left-handed corkscrew path

Quizplus · Accepted Answer

A charged particle moving parallel or antiparallel to a uniform magnetic field experiences no net force due to magnetic field, therefore its velocity remains constant, which means it will be unaffected by the field.

An Electron Travels Due North Through a Vacuum in a Region