A common way to accelerate electrons is shown in the fig- re, which depicts two charged plates with a hole in the ight plate. The electrons are released, usually from a hot ilament, near the left plate and are accelerated toward the ight plate. (a) If the amount of charge on each plate is Q = 1nC, the distance between them is d = 5mn and they are circular plates with a radius of 10cm, what is the E-field between them? (b) Find the acceleration of the electron in the region between the plates. (c) Find the potetial difference (voltage) between the plates.

A common way to accelerate electrons is shown in the fig- re, which depicts two charged plates with a hole in the ight plate. The electrons are released, usually from a hot ilament, near the left plate and are accelerated toward the ight plate. (a) If the amount of charge on each plate is Q = 1nC, the distance between them is d = 5mn and they are circular plates with a radius of 10cm, what is the E-field between them? (b) Find the acceleration of the electron in the region between the plates. (c) Find the potetial difference (voltage) between the plates.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.

Question

Some possibly useful numbers
= 8.99 x 10° N-m²/C² €0 = 8.85 × 10-12C²/Nm²
e = 1.6 × 10–19 C
= 9.11 × 10-31kg
mp
= 1.67 x 10–27kg
leV
1.6 x 10-19J
%3D

A common way to accelerate electrons is shown in the fig-
ure, which depicts two charged plates with a hole in the
right plate. The electrons are released, usually from a hot
filament, near the left plate and are accelerated toward the
right plate.
(a) If the amount of charge on each plate is Q = 1nC, the distance between them is d = 5mm,
and they are circular plates with a radius of 10cm, what is the E-field between them?
(b) Find the acceleration of the electron in the region between the plates.
(c) Find the potential difference (voltage) between the plates.
(d) How fast are the electrons when they reach the right plate, assuming that they start
from rest?

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