Answered: A simple and common technique for…

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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Question

A simple and common technique for accelerating electrons is shown in the figure below, 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.

a) calculate the acceleration of the electron if the field strength is 4.20x10⁴ N/C.

Expert Solution

Step 1

a= f/m where f= force on the paticle and m= mass of the particle.

We know

Mass of electron(m) = 9.10938291 * 10^-31 kilograms.

We now need to determine the value of force acting on the particle.

Force f on a particle is the product of the charge q and electric field E acting on the particle. i.e

f=q*E.

The value of q= -1.60217657 * 10^-19 C

and E= -4.20*10⁴ N/C(as the electric field points towards the negative x direction).

f = q*E = -1.60217657 * 10^-19 *(- 4.20*10⁴ ) =6.72*10^-15 N.

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