A uniformly charged ring of radius a. (a) The field at P on the x axis...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A uniformly charged ring of radius a. (a) The field at P on the x axis due to an element of charge dq. (b) The perpendicular component of the field at P due to segment 1 is canceled by the perpendicular component due to segment 2. dq OO dE dEx dE b 2 dE dE2 dE a Analyze Evaluate the parallel component of an electric field contribution from a segment of charge dq on the ring: From the geometry in Figure 23.3a, evaluate cos 0: Substitute Equation (2) into Equation (1): dq (1) dEx = ke x (2) cos A r dEx = ke All segments of the ring make the same contribution to the field at P because they are all equidistant from this point. Integrate over the circumference of the ring to obtain the total field at P: Ex cos 0 = ke dq a + x cos dq x (a + x) 1/2 a + x (a + x)1/2 kex (a + x)/2 kex kex = -dq = (a + -x2)/2 (a + x)/2 da kex (3) E = Q (a + x)/2 -dq Finalize The electric field at P is of this magnitude and directed along the x axis, away from the ring. This result shows that the field is zero at x = = 0. Is that consistent with the symmetry in the problem? Furthermore, notice that Equation (3) reduces to keQ/x if x >> a, so the ring acts like a point charge for locations far away from the ring. From a faraway point, we cannot distinguish the ring shape of the charge. A uniformly charged ring of radius a. (a) The field at P on the x axis due to an element of charge dq. (b) The perpendicular component of the field at P due to segment 1 is canceled by the perpendicular component due to segment 2. dq OO dE dEx dE b 2 dE dE2 dE a Analyze Evaluate the parallel component of an electric field contribution from a segment of charge dq on the ring: From the geometry in Figure 23.3a, evaluate cos 0: Substitute Equation (2) into Equation (1): dq (1) dEx = ke x (2) cos A r dEx = ke All segments of the ring make the same contribution to the field at P because they are all equidistant from this point. Integrate over the circumference of the ring to obtain the total field at P: Ex cos 0 = ke dq a + x cos dq x (a + x) 1/2 a + x (a + x)1/2 kex (a + x)/2 kex kex = -dq = (a + -x2)/2 (a + x)/2 da kex (3) E = Q (a + x)/2 -dq Finalize The electric field at P is of this magnitude and directed along the x axis, away from the ring. This result shows that the field is zero at x = = 0. Is that consistent with the symmetry in the problem? Furthermore, notice that Equation (3) reduces to keQ/x if x >> a, so the ring acts like a point charge for locations far away from the ring. From a faraway point, we cannot distinguish the ring shape of the charge.
Expert Answer:
Related Book For
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
Posted Date:
Students also viewed these physics questions
-
Assume that you have been hired as a consultant by CGT , a major producer of chemicals and plastics, including plastic grocery bags, styrofoam cups, and fertilizers, to estimate the firm's weighted...
-
Suppose Green Caterpillar Garden Supplies Inc. is evaluating a proposed capital budgeting project ( project Beta ) that will require an initial investment of $ 3 , 2 2 5 , 0 0 0 . The project is...
-
Balance Sheet June 3 0 th , Year 5 Assets Liabilities and Equity Cash 1 0 , 0 0 0 Accounts Payable 1 9 , 0 0 0 Accounts receivables 3 4 , 0 0 0 Wages Payable 4 , 0 0 0 Inventory 6 0 , 0 0 0 Income...
-
When Ralph Lauren makes shirts to a customers exact preferences, what utility is provided?
-
Sandpaper is rated by the coarseness of the grit on the paper. Sandpaper that is more coarse will remove material faster. Jobs such as the final sanding of bare wood prior to painting or sanding in...
-
K. Decker, S. Rosen, and E. Toso are forming a partnership. Decker is transferring $50,000 of personal cash to the partnership. Rosen owns land worth $15,000 and a small building worth $80,000, which...
-
The following returns were realized on an investment over a 5-year period. Year 1 2 3 4 5 Rate of Return .10 .22 .06 .05 .20 a. Compute the mean and median of the returns. b. Compute the geometric...
-
You are the manager for Dunkin Donuts and know the following elasticities: = 1.5 I = 1.2 xy1 = 0.5 xy2 = -0.5 is the price elasticity of demand for Dunkin Donuts (DD) glazed doughnuts, xy1 is the...
-
The Earth is 1.50*10^11 m from the Sun. The sun illuminates the Earth with sunlight intensity 1300W/m^2. ( a ) What total electromagnetic power does the Sun emit ? The Earth has radius 6.40 x 10^6 m...
-
Although the company has already established medical and retirement plan benefits, Toni Prevosti wants to consider other benefits to attract employees. As the companys accountant, you have been...
-
Scope of Representation We have been engaged to represent [Client's Name] for the purpose of hereinafter referred to as the "matter" or "engagement. However, engagement does not include
-
Columbia Corp. is a young, rapidly growing company that manufactures computer accessories and specialized components for networked computer workstations. It has some unique products and a strong...
-
Imagine that you are a conflict resolution and negotiation consultant who has been hired to assist a company with some specific needs. Ms. Jennifer Garcia is the human resources supervisor at this...
-
A number generator sequences through numbers, 0, 1, 3, and 6. After 6, it goes back to O and continues the same counting sequence. A 3-bit binary number ABC is used to represent the numbers, whereby...
-
Find the derivative of f(x) = x cos x f'(x) = Submit answer
-
Describe what XLSTAT is and describe two of its features 7. Describe what SPSS Statistics are and describe two features. 8. How do you calculate the lifetime value of a customer? 9. What do...
-
1. Differentiate managerial accounting from financial accounting.
-
Differentiate. y = ln(3x + 1) ln(5x + 1)
-
Which of the following accounts in the Adjusted Trial Balance columns of the work sheet would be extended to the Balance Sheet columns? LO5 A. Utilities Expense C. M. E. Jones, Drawing B. Rent...
-
(Coping with uncertainty) Stanton Industries manufactures Christmas orna ments in its sole plant located in Wisconsin. Because the demand for the companys products is very seasonal, the company...
-
Which of the following accounts would be classified as a current asset on the balance sheet? LO5 A. Office Equipment B. Land C. Accumulated Depreciation D. Accounts Receivable
![Mobile App Logo](https://dsd5zvtm8ll6.cloudfront.net/includes/images/mobile/finalLogo.png)
Study smarter with the SolutionInn App