APFIVE Magnetic Force and Kinetic Energy
An electron is accelerated from rest through a potential difference of 200 V. Upon entering a region with a uniform magnetic field perpendicular to its velocity, what happens to the electron’s kinetic energy?
A
It oscillates between maximum and minimum values
B
It decreases as the electron moves in a circular path
C
It remains constant
D
It increases proportionally to the magnetic field strength
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