2/75 Electrons are emitted at A with a velocity u at theangle 0 into the space between two charged plates. Theelectric field between the plates is in the direction Eand repels the electrons approaching the upper plate.The field produces an acceleration of the electrons inthe E-direction of eElm, where e is the electron chargeand m is its mass. Determine the field strength Ewhich will permit the electrons to cross one-half of thegap between the plates. Also find the distance s.mu? sin? 6Ans. E =s = 2b cot 0ebEb/2Electronpathb/2ElectronsourceProblem 2/75

Answered: Image /qna-images/answer/dbd7d11c-2201-4f92-87fc-499d3ffcba01.jpg

2/75 Electrons are emitted at A with a velocity u at the angle 0 into the space between two charged plates. The electric field between the plates is in the direction E and repels the electrons approaching the upper plate. The field produces an acceleration of the electrons in the E-direction of eE/m, where e is the electron charge and m is its mass. Determine the field strength E which will permit the electrons to cross one-half of the gap between the plates. Also find the distance s. mu? sin2 6 Ans. E = s = 26 cot 0 eb E b/2 Electron path b/2 A Electron source

2/75 Electrons are emitted at A with a velocity u at the angle 0 into the space between two charged plates. The electric field between the plates is in the direction E and repels the electrons approaching the upper plate. The field produces an acceleration of the electrons in the E-direction of eE/m, where e is the electron charge and m is its mass. Determine the field strength E which will permit the electrons to cross one-half of the gap between the plates. Also find the distance s. mu? sin2 6 Ans. E = s = 26 cot 0 eb E b/2 Electron path b/2 A Electron source

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)...

See similar textbooks

Similar questions

An evacuated tube uses an accelerating voltage of 55 kV to accelerate electrons to hit a copper plate and produce X-rays. Non-relativistically, what would be the maximum speed (in m/s) of these electrons?
If a proton and electron are released when they are 2.0 m apart, find the initial acceleration of electron (in m/s?). The answer (in fundamental Sl unit) is (type the numeric value only)
Suppose a capacitor consists of two coaxial thin cylindrical conductors. The inner cylinder of radius ra has a charge of +Q, while the outer cylinder of radius rp has charge -Q. The electric field E at a radial distance r from the central axis is given by the function: E = aer/ao + B/r + bo %| where alpha (a), beta (B), ao and bo are constants. Find an expression for its capacitance. First, let us derive the potential difference Vab between the two conductors. The potential difference is related to the electric field by: Va Edr= Edr Calculating the antiderivative or indefinite integral, Vab = (-aaoe-r/ao + B + bo By definition, the capacitance C is related to the charge and potential difference by: C = Evaluating with the upper and lower limits of integration for Vab, then simplifying: C = Q/( (e-"b/ao - era/ao) + B In( ) + bo ( ))
eling orizontally with an speed of v; = 3.0 × 10' m/s enters a uniform, vertically upward electric field with magnitude E = 2.0 × 10* N/C between the deflection plates of an oscilloscope, as shown in the figure. The initial velocity of the electrons is perpendicular to the field. The plates are d = 4.0 cm long. Ignoring all forces apart from the electrostatic interactions, calculate the magnitude and direction of the velocity of the 11 Vi E d oloctrons ofter nossing thouch the plotes
Two parallel, flat, conducting plates with equal but opposite charges are separated by a uniform layer of insulating material with a dielectric constant of 7.1 and a thickness of 1.7mmmm. The electric field in the dielectric material is 2.22MV/mMV/m. What is the magnitude, in microcoulombs per squared meter, of the surface charge density on the conducting plates? What is the magnitude, in microcoulombs per squared meter, of the surface charge density on the conducting plates?
A particle (mass=4.0 g, charge=80 mC) moves in a region of space where the electric field is uniform and is given by Ex= -2.5 N/C, if the velocity of the particle at t=0 is given by vx= 120 m/s, what is the speed (in m/s) of the particle at t=2.0 s? Select one: O a. 20 O b. 40 O c. 30 O d. 60
An engineer is designing a process for a new transistor. She uses a vacuum chamber to bombard a thin layer of silicon with ions of phosphorus, each of mass mp = 5.18 × 10-26 kg. The phosphorus ions are doubly ionized, with each phosphorus ion lacking two electrons. The ions start at rest at one end of the vacuum chamber and are accelerated by an electric field over a distance of re = 45 cm before they strike the silicon layer with velocity vp = 105 m/s. What is an expression for the potential difference AV, in volts, between the initial and final points across the vacuum chamber.
An alpha particle (charge 2e) is aimed directly at a gold nucleus (charge 79e). What minimum initial kinetic energy must the alpha particle have to approach within 5.0 * 10-14 m of the center of the gold nucleus before reversing direction? Assume that the gold nucleus, which has about 50 times the mass of an alpha particle, remains at rest.
Certain sharks can detect an electric field as weak as 1.0 μV/mμV/m. To grasp how weak this field is, if you wanted to produce it between two parallel metal plates by connecting an ordinary 1.5 VV AA battery across these plates, how far apart would the plates have to be? Express your answer in meters.
An insulating rod having linear charge density λ = 60.0 μC/m and linearmass density μ = 0.100 kg/m is released from rest in a uniform electric fieldE = 150 V/m directed with angle 52.2 to the rod. Determine the speed of therod after it has traveled 3.00 m.
An engineer is designing a process for a new transistor. She uses a vacuum chamber to bombard a thin layer of silicon with ions of phosphorus, each of mass mP = 5.18 × 10-26 kg. The phosphorus ions are doubly ionized, with each phosphorus ion lacking two electrons. The ions start at rest at one end of the vacuum chamber and are accelerated by an electric field over a distance of re = 59 cm before they strike the silicon layer with velocity vP = 185 m/s. a. Enter an expression for the potential difference ΔV, in volts, between the initial and final points across the vacuum chamber. (b) Calculate the average electric field strength E, in volts per meters, across the vacuum chamber. c. Calculate the average electric force F, in newtons, that the electric field exerts on each phosphorus ions.
In this example, we will analyze the motion of an electron that is released in an electric field. The terminals of a 100 VV battery are connected to two large, parallel, horizontal plates 1.0 cmcm apart. The resulting charges on the plates produce an electric field in the region between the plates that is very nearly uniform and has magnitude E� = 3.0×104 N/C. Suppose the lower plate has positive charge, so that the electric field is vertically upward, as shown in (Figure 1). (The thin pink arrows represent the electric field.) If an electron is released from rest at the upper plate, what is its speed just before it reaches the lower plate? How much time is required for it to reach the lower plate? The mass of an electron is me=9.11×10−31kg. Please refer to the photos