A) \[B\upsilon r\]
B) \[\frac{\upsilon }{Br}\]
C) \[B\upsilon {{r}^{2}}\]
D) \[\frac{B}{r\upsilon }\]
Correct Answer: B
Solution :
If a magnetic field is applied perpendicular to a moving electron, then electron will move on a circular path. Therefore, centripetal force = force on electron due to magnetic field \[\frac{m{{\upsilon }^{2}}}{r}=Be\upsilon \]\[\frac{e}{m}=\frac{\upsilon }{rB}\]You need to login to perform this action.
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