Concept explainers
Suppose the charge of the particle in section II is increased from
1. Is the work done by the electric field as the particle travels from W to X greater than, less than, or equal to the work done by the electric field on the original particle? Explain
2. How is the quantity the work divided by the charge affected by this change?
The electric potential difference
where W is the work done by the field as a charge q travels from point W to point X.
3. Does this quantity depend on the magnitude of the charge of the particle that is used to measure it? Explain.
4. Does this quantity depend on the sign at the charge at the particle that is used to measure it? Explain.
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
Tutorials In Introductory Physics: Homework
Additional Science Textbook Solutions
University Physics with Modern Physics (14th Edition)
University Physics Volume 2
Lecture- Tutorials for Introductory Astronomy
An Introduction to Thermal Physics
The Cosmic Perspective Fundamentals (2nd Edition)
Physics (5th Edition)
- Part A What is q�? Express your answer with the appropriate units. Part B If we ignore the suspended charge on the string, and only consider the fixed charge q, what would the electric potential (V) be at the present location of the suspended charge? Assume the fixed charge behaves as a point charge.Hint: use the equation for electric potential of a point charge:V=Kq/r=, where K = 9 x 109 Nm2/C2arrow_forwardplease answer G and H. previous questions are above to help:)arrow_forwardCathode-ray tubes (CRTS) are often found in oscilloscopes and computer monitors. In (Figure 1) an electron with an initial speed of 6.70×106 m/s is projected along the axis midway between the deflection plates of a cathode-ray tube. The potential difference between the two plates is 24.0 V and the lower plate is the one at higher potential. Part E How far below the axis has the electron moved when it reaches the end of the plates? Express your answer in meters. ? Figure 1 of 1 Submit Request Answer Part F 2.0 cm S At what angle with the axis is it moving as it leaves the plates? Express your answer in degrees. 不6.0 cm米 12.0cm V ΑΣΦ ?arrow_forward
- The figure(Figure 1) is a graph of E. The potential at the origin is -160V. You may want to review (Pages 715 716). Part A What is the potential at x = 3.0 m? Express your answer to two significant figures and include the appropriate units. ? V(3.0 m) = Value Units Submit Request Answer Provide Feedback Figure < 1 of 1 E, (V/m) 200 100 x (m) 3 1arrow_forwardPart A A small particle has charge -6.50 uC and mass 1.50x10 kg. It moves from point A, where the electric potential is VA = 230 V, to point B, where the electric potential Vg = 580 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 5.40 m/s at point A. What is its speed at point B? Express your answer in meters per second. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Electric torce and electric potential. m/s Submit Request Answer Part B Is it moving faster or slower at B than at A? Faster Slower Submit Requeet Anawer Provisde Eesedbackarrow_forwardFigure 1 of 1> Part B What is the potential difference AVAB = VB – VA? Express your answer with the appropriate units. +) AVAB = 0 V Part A What is the electric potential at points A, B, and C in (Figure 1)? Suppose that q = 2.0 nC, ri = 1.1 cm, and r2 = 2.2 cm. Enter your answers numerically separated by commas. να ΑΣφ ? VA. VB. Vc = 1.4 • 10°,1.4 • 10°,0.37 •10 V Part C What is the potential difference AVCB = VB – Vc? Express your answer with the appropriate units. HẢ ? AVCB = 1.03 Varrow_forward
- Part A How much work does the electric field do in moving a proton from a point with a potential of +175 V to a point where it is -75 V ? Express your answer in joules. Express your answer using two significant figures. ? J Wba Submit Request Answer Part B Express your answer in electron volts. Express your answer using two significant figures. ? eV Wbaarrow_forwardIn a certain region of space the electric potential is given by V=+Ax^2y−Bxy^2, where A= 5.00 V/m^3 and B= 8.00 V/m^3. Part A Calculate the magnitude of the electric field at the point in the region that has coordinates x= 1.10 m, y= 0.400 m, and z= 0. Express your answer to three significant figures and include the appropriate units. Part B Calculate the direction angle of the electric field at the point in the region that has coordinates x= 1.10 m, y= 0.400 m, and z= 0. Express your answer in degrees.∘, measured counterclockwise from the positive x-axis in the xy planearrow_forwardFind the maximum permissible voltage across the capacitor to avoid dielectric breakdown. Express your answer using two significant figures. A capacitor has parallel plates of area 12 cm? separated by 5.5 mm. The space between the plates is filled with polystyrene which has a electric constant of K=2.6, and a dielectric strength of E= 2.0 x 107V/m. ? V Submit Request Answer Part B When the voltage equals the value found in the part above, find the surface charge density on each plate. Express your answer using two significant figures. ? C/m? Submit Reguest Answer Part C Find the induced surface-charge density on the surface of the dielectric. Express your answer using two significant figures. ? C/m² %Darrow_forward
- rt A An electron moves along the trajectory of (Figure 1) from i to f. es the electric potential energy increase, decrease, or stay the same? Explain. tch the words in the left column to the appropriate blanks in the sentences on the right. Reset -2 so its absolute value positive The electric potential energy of the charges is proportional to T with increase of r As the charges have opposite signs, the potential energy of the charges has as r increases. negative sign. Thus, the potential energy decreases decreases Figure く 1of 1 positive negative increases remains the same f Submit Previous Answers Request Answer P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. Terms of Use Privacy Policy Permissions | Contact Us | 12:33 PM Ps 59°F Cloudy ^ 504 4/2/2022 IIarrow_forwardThe electric potential in a region is given by V=2.0xy−3.0zx+5.0^y2, with V in volts and the coordinates in meters. Part A Find the potential of the electric field at the point x = 3 m , y = 1 m, z = 1 mm. Express your answer with the appropriate units.arrow_forwardPart A In (Figure 1), the electric potential at point A is -300 V. What is the potential at point B, which is 6.5 cm to the right of A? Express your answer with the appropriate units. HA VB = Value Units Submit Request Answer Figure 1 of 1 Provide Feedback E = 1200 V/m A 30°arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON