Having some trouble with these post lab questions, the lab was on the deflection

Question

Having some trouble with these post lab questions, the lab was on the deflection of elections in an electric field.

1) Our calculation of plate separation assumes simple flat parallel deflection plates. In practice, the deflection plates actually have a flared end. Given this information, what do the measured values of plate separation distance actually represent? Explain.

2) Suppose the force of gravity on the electron was comparable to the electric force created by the deflection plates. How would this change the results of your experiment?

Thanks!!

Explanation / Answer

(1)

Sepertion is northing but the separtion between changes accumulate on the plate. The charge reside on the surface of the plates. Therefore, we should consider separtion from inner surface ends of two plates ( surface to surface).

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(2)

Gravitational force and the electric force extend over distances. These are called “action at a distance” forces. In the case of these two forces are equal, then the net force acting on the electron is zero. In this case, electron is in the state of equilibrium. In this case, the electron should move with constant velocity, ( uniform motion ).

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