In a certain electron beam, there are 5.0 106 electrons per cubic centimeter. Suppose the kinetic

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 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.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

1st Edition

Authors: Edmund G. Seebauer, Robert L. Barry

See More Books

Question Posted: Jul 23, 2011 05:13 AM

See More 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?
Examine the difficulty of adding a proposed lwi.drd, rsl, rs2 (Load With Increment) instruction to MIPS. Interpretation: Reg[rd] = Mem[Reg[rs1] + Reg[rs2]] 1. Which new functional blocks (if any) do...
Germany-based sportswear retailer PUMA AG Rudolf Dassler Sport reported the following selected information (in EUR millions, except per share data) for the years ended December 31, 2010 and 2009:...
Jackie Wengler, owner of Wengler Home Decorating Service, has requested that you prepare from the following balances (a) An income statement for June 201X, (b) A statement of owner?s equity for June,...
(b) Determine the block and treatment structures of this experiment.
Cocoaheaven processes cocoa beans into cocoa powder at a processing cost of $9,500 per batch. Cocoaheaven can sell the cocoa powder as is or it can process the cocoa powder further into either...
Fill in the columns, total them up, and check for the balance. pick most companie UJE Bonjour Company began operations in September, 2021. The company decided to make use of the following accounts:...
On January 1, 2020, Procise Corporation acquired 100 percent of the outstanding voting stock of GaugeRite Corporation for $1,980,000 cash. On the acquisition date, GaugeRite had the following balance...
In a fluorescent tube of diameter 3.0 cm, 2.0 1018 electrons and 0.5 1018 positive ions (with a charge of +e) flow through a cross-sectional area each second. What is the current in the tube?
A charge +q moves in a circle of radius r with speed v. (a) Express the frequency f with which the charge passes a particular point in terms of r and v. (b) Show that the average current is qf and...
In Appendix D, what is the probability that a male will have an ADDSC score greater than 50?
Draw a bar graph for each data set in Problems 32-35. Data set $\mathrm{D}$ Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 35 25 25 16 14 1...
Draw a line graph for each data set in Problems 36-39. Data set A Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 25 16 25 25 14 18 1 2 2 2...
For each of the angles shown: (i) Estimate its size (ii) Measure it and check how good your estimate was. Aim for your estimate to be within 10 of the actual angle. a. b. c. d. e. f.
For the quasispin model of Problem 31.1 , find the eigenvalues of $s_{0}^{(m)}$ for the levels labeled by $m$. Show that the system has a total quasispin $S$ that is the vector sum of quasispins for...
A sole proprietorship was started on January 1, 2005, when it received $$60,000$ cash from Mark Pruitt, the owner. During 2005, the company earned $$40,000$ in cash revenues and paid $$19,300$...
Reconstructing transactions involving shareholders' equity. Shea Company began business on January 1. Its balance sheet on December 31 contained the shareholders' equity section shown in Exhibit...
One hundred pounds of water at atmospheric pressure are heated from 60F to 200F. What is the enthalpy change? The internal energy change? Why is the difference between the internal energy change and...
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.
exercise 4-7 (Algo) Effects of transactions on income statement LO P2
Compute the value of ordinary bonds under the following circumstances assuming that the coupon rate is 0.06:(either the correct formula(s) or the correct key strokes must be shown here to receive...
A tax-exempt municipal bond has a yield to maturity of 3.92%. An investor, who has a marginal tax rate of 40.00%, would prefer and an otherwise identical taxable corporate bond if it had a yield to...

In a certain electron beam, there are 5.0 106 electrons per cubic centimeter. Suppose the kinetic

Question:

Step by Step Answer:

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

Fundamentals of Ethics for Scientists and Engineers

Students also viewed these Electricity and Magnetism questions