Asked by Anonymous
A beam of electrons enters a pair of croseed electric and magnetic fields in which the electric field strenght of 3.0*104 V m^-1 and magnetic flux density of 1*10^-2 T. If the beam is not deflected from its path by the fields, what must be the speed of the electrons?
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Answers
Answered by
drwls
e V B must equal e E
That means V = E/B = 3*10^4/1*10^-2
The answer will be in m/s for the SI units you are using for E and B
That means V = E/B = 3*10^4/1*10^-2
The answer will be in m/s for the SI units you are using for E and B
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