A beam of electron is tired through the axis of current carrying solonoid, the speed of electrons will
A. Increase
B. Decrease
C. Not change
D.zero
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Answer:
C. Not change
Explanation:
The force on the electron is e v cross B, the charge of the electron times the vector cross product of its velocity and the magnetic field. which in this instance are in parallel directions so there is no force and no acceleration, no change in velocity.
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