A) The gain in the K.E. of the electron moving at right angles to the magnetic field is zero.
B) When an electron is shot at right angles to the electric field, it traces a parabolic path.
C) An electron moving in the direction of the electric field gains K.E.
D) An electron at rest experiences no force in the magnetic field.
Correct Answer: C
Solution :
An electron moving in the direction of the electric field gains K.E.
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