Why will the electron not be pulled back to the positive

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Reference no: EM131112957

A simple and common technique for accelerating electrons is shown in Figure 17.34, where a uniform electric field is created between two plates. Electrons are released, usually from a hot filament, near the negative plate, and there is a small hole in the positive plate that allows the electrons to continue moving.

1668_Transtutors004_4f2a4c8b-6cbe-4df1-bf76-ab7241772537.gif

Figure 17.34

(a) Calculate the acceleration of the electron if the field strength is 4.00 ? 104 N/C.
(answer in m/s2)

(b) Why will the electron not be pulled back to the positive plate once it moves through the hole?

Reference no: EM131112957

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