(a) Three point charges are located on the circumference of a circle of radius r, at the angles shown in the figure. 150° O 30° 270° What is the electric field at the center of the circle due to these point charges? (Express your answer in vector form. Use the following as necessary: Ker 9, and r.) 3k 34 (-1) (b) What If? What is the minimum electric field magnitude that could be obtained at the center of the circle by moving one or more of the charges along the circle, with a minimum separation of 3.90° between each of the charges? Express your result as the ratio of this new electric field magnitude to the magnitude of the electric field found in part (a). Eminimum 0.0015 X Epart (a) Place the two charges +q at 0= 270° ± y, where y is the smallest angle at which the charges do not overlap with the charge -2q, then write an expression for the electric field at the center.

(a) Three point charges are located on the circumference of a circle of radius r, at the angles shown in the figure. 150° O 30° 270° What is the electric field at the center of the circle due to these point charges? (Express your answer in vector form. Use the following as necessary: Ker 9, and r.) 3k 34 (-1) (b) What If? What is the minimum electric field magnitude that could be obtained at the center of the circle by moving one or more of the charges along the circle, with a minimum separation of 3.90° between each of the charges? Express your result as the ratio of this new electric field magnitude to the magnitude of the electric field found in part (a). Eminimum 0.0015 X Epart (a) Place the two charges +q at 0= 270° ± y, where y is the smallest angle at which the charges do not overlap with the charge -2q, then write an expression for the electric field at the center.

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

calculate the electric field at the center of a square 1.22 m on a side if the other three corners are occupied by 3.285 E -6 C charges. This is not the same question as the previously asked electric field questions.
(a) Three point charges are located on the circumference of a circle of radius r, at the angles shown in the figure. 9 - 270° 150° Eminimum Epart (a) 30° -2q What is the electric field at the center of the circle due to these point charges? (Express your answer in vector form. Use the following as necessary: k₂, q, and r.) 3k g 9 (b) What If? What is the minimum electric field magnitude that could be obtained at the center of the circle by moving one or more of the charges along the circle, with a minimum separation of 7.50° between each of the charges? Express your result as the ratio of this new electric field magnitude to the magnitude of the electric field found in part (a). X
(a) Three point charges are located on the circumference of a circle of radius r, at the angles shown in the figure. 9 E = 270° 150° 30° -x -2q What is the electric field at the center of the circle due to these point charges? (Express your answer in vector form. Use the following as necessary: k, 9₁ and r.)
Suppose you design an apparatus in which a uniformly charged disk of radius R is to produce an electric field. The field magnitude is most important along the central perpendicular axis of the disk, at a point Pat distance 2.90R from the disk (see Figure (a)). Cost analysis suggests that you switch to a ring of the same outer radius R but with inner radius R/2.90 (see Figure (b)). Assume that the ring will have the same surface charge density as the original disk. If you switch to the ring, by what part will you decrease the electric field magnitude at P? (a) (b) Number i Units
The superposition of fieldsA particle whose charge is -0.5uC is fixed at the origin of a system of xy axes. (a) What is the electric field it generates at point P with coordinates (x=1m; y=2m)? (b) A particle with a charge of 0.5 uC is added to position (x=2m; y=0): what is the resulting electric field at point P?
Find the electric field at the location of qa in the figure given that qb = qc = qd = +2.00 mC, q = -1.00 nC, and the square is 20.0 cm on a side. a) Calculare the electric field at qa due to q and qd (add the fields due to those two charges together). Give a positive value if the field is in the second quadrant, and negative if it is in the fourth quadrant. b) Now calculate the field due to qb and qc. Add the fields together, remembering that they are vectors. GIve a positive value for 2nd quadrant, negative for 4th.
(a) Three point charges are located on the circumference of a circle of radius r, at the angles shown in the figure. 150° 30° 270° -29 Ⓡ What is the electric field at the center of the circle due to these point charges? (Express your answer in vector form. Use the following as necessary: ker 9, and r.) 3k_q 네 ,2 (b) What If? What is the minimum electric field magnitude that could be obtained at the center of the circle by moving one or more of the charges along the circle, with minimum separation of 3.90° between each of the charges? Express your result as the ratio of this new electric field magnitude to the magnitude of the electric field found in part (a). Eminimum Epart (a)
Consider the following load distribution:"A thin disk of radius R has a charge Q evenly distributed over its entire area."Using Coulomb's Law to find the electric field associated with this charge distribution, "at points on the disk axis"; a) Find the equation that describes the movement of an abandoned electron at any point on the axis of the disk.
A 10 nC charge generates an electric field within an isolated chamber. At a point a distance d meters away from the charge, the electric field is measured to be 4 N/C. Determine d in meters. Use k=9 x109 for the electric constant. (nC to C in final answer)
Consider the symmetrically arranged charges in the figure, in which qa 9b = -2.45 µC and q. = qd = +2.45 µC. Determine the direction of the electric field at the location of charge q. O right up and left down and left up and right dn down left down and right Calculate the magnitude of the electric field E at the location of q given that the square is 6.35 cm on a side.
A 6 µC charge q1 located at the origin cm creates an electric field that fills all of space. A -8 µC charge q2 is brought to the point cm. The 6 µC charge is returned but now the -8 µC charge is moved to cm. What is the new net force extered on q2? Answer as a vector in Newtons.
A gold nucleus you emanates electric field, holding all its electrons in place. How strong is the electric field experienced by a single electron from its outermost orbital, located at 136 PM? How fast is it moving on its circular orbit, assuming it has a hypothetical plane orbit? How much kenetic energy is gained by the electron? Give full solution and illustrate the problem.