An electron travels in the x direction at constant speed v. It enters a region o

Question

An electron travels in the x direction at constant speed v. It enters a region of uniform electrical field E pointing in the y direction (perpendicular to the electron's original motion). From the moment the electron enters the region of electric field, it is displaced a distance L in the y direction in the time that it travels a distance d in the x direction.
If the electron's speed in the x direction had been twice as large, how much would it have been deflected in the y direction in the time it travelled a distance d in the x direction?

A. 4L

B. 2L

C. L

D. L/2

E. L/4

Explanation / Answer

L/4

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