Question: In a certain electron beam, there are 5.0 106 electrons per cubic centimeter. Suppose the kinetic energy of each electron is 10.0 keV, and

In a certain electron beam, there are 5.0 × 106 electrons per cubic centimeter. Suppose the kinetic energy of each electron is 10.0 keV, and the beam is cylindrical, with a diameter of 1.00 mm.

(a) What is the velocity of an electron in the beam?

(b) Find the beam current.

Step by Step Solution

★★★★★

3.42 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a v 2Km e K 10 4 ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

10-P-E-D-C (316).docx

120 KBs Word File

Students Have Also Explored These Related Electricity and Magnetism Questions!

Find the velocity at which the kinetic energy of a particle equals its rest energy.

Find the increment of the kinetic energy of the closed system comprising two spheres of masses m1 and m2 due to their perfectly inelastic collision, if the initial velocities of the spheres were...

The kinetic energy of a fluid increases as it is accelerated in an adiabatic nozzle. Where does this energy come from?

Topic: Physics: Statistical Mechanics. Instructions: Answer the Problems below and Show Complete Solution. Introductory Statistical Mechanics The Ideal Gas and Kinetic Molecular Theory Problem Sets...

Ch.15 Physics When a glass rod is rubbed with silk, which of the following statements best describes what happens? Electrons are removed from the rod. Protons are removed from the silk. The silk is...

1 I understand d . that this is an open book non-supervised quiz. ded . that I am allowed access to my course material and calculator. . this quiz is to be done independently without the assistance...

This printout should have 13 questions. Multiple-choice questions may continue on the next column or page nd all choices before answering. 001 10.0 points A ball has a mass of 0.22 kg just before it...

The experimental result differs from the assumption. The result shows that the ring oscillator frequencies can be grouped into two groups, where the first group is the high frequency group for the...

Gamma rays were first observed by the to detect defects in casts, molds, and metal French chemist Paul Villard (1860-1934) sheets. It can also be used as a thickness in 1900 when he was investigating...

Please answer all the questions properly all the relevant in is provided. Pls try your best! im Counting on u! Thank uuuuu :) Please write your answers (showing all steps) neatly and clearly. This...

Carbohydrates Anonymous (CA) operates a chain of weight-loss centers for carb lovers. Its services have been in great demand in recent years and its profits have soared. CA recently paid an annual...

Find a 95% confidence interval for the proportion of customers who will purchase at least one item if they receive a coupon for 5% off. Repeat for 10% off and for 15% off.

1 Why should most of the calls at the mortgage centre be within specified limits? What are the advantages and disadvantages of controlling the time staff spend on each call?

1: Data definitions and Input-Output functions Write a program that stores the mark allocation weights for 4 assessments as shown in the table below in an array. The program must prompt the user to...

(a) Outline Newman projections of Butane along its C2-Ca bond (show all conformers) and discuss their energy levels with rough graph sketch. (10 marks) (b) 'Draw the most stable conformation of (2...

2. Which of the following would you expect to have the highest boiling point: CH;CH,CH3 CH;OH, CH;CH2OH , CH3COOH ? Explain your answer. (4 Marks) 3. Outline the type of hybridation in Ethanoic acid...

1. 25 cm of iron (II) sulphate reacts with 24.3 cm Of 0.02M potassium manganate (VII) solution. Calculate the concentration of the iron( sulphate) solution. Mn04 + 8H* + 5FE2* - 5Fe* + 4H20 + Mn2* (3...

A random sample x = (x 1 ,x 2 ,...,x m ) is available from an N(,) distribution and a second independent random sample y (y 1 , y 2 ,..,Y n ) is available from an N(,2) distribution. Obtain, under...

A fixed pulley carries a weightless thread with masses m1 and m2 at its ends. There is friction between the thread and the pulley. It is such that the thread starts slipping when the ratio m2/ml =o....

A particle of mass m moves along the internal smooth surface of a vertical cylinder of radius R. Find the force with which the particle acts on the cylinder wall if at the initial moment of time its...

Find the magnitude and direction of the force acting on the particle of mass m during its motion in the plane xy according to the law x = asin t, y = bcos t, where a, b, and are constants.

The stock of the Belta Corporation has a beta of 1.1. The stock recently paid an annual dividend of $0.42, and dividends are expected to grow at a rate of 4% indefinitely. The equity premium has...

One measure of the health of a national economy is how quickly it creates jobs. One aspect of this issue is the number of jobs individual hold. As part of a study on job tenure, a survey was...

Assume the following information about projected cost and charges for a hospital in 2016: Fixed Costs = $10,000,000 Variable Cost per Inpatient Day = $200 Charge per Inpatient Day = $1,000. Initial...