3. a) Calculate the work done in moving a 2C charge from B(-1, 3,0) to A(2,...
(b) Eight point charges, each of charge -q are placed to form the comers of a cube in space, as shown in the diagram below. Assume these charges are fixed in space. Explain why another identical charge placed at the centre of the cube is not held in stable equilibrium by the electric field. Use both Gauss's law and the electrostatic potential to justify your answer. [5 marks] (c) Write a line integral that relates the electric field due to...
WEEK 3, QUESTION1 Recall: by definition work done by a force after moving an object through displacement AFİS W F.AF. Electric force p = (3.00-4.00) × 10, N moves a charge q =-2.0 mC through a distance d = (1.01 + 1.0)) cm. What is the work done by the electric field? A)W 10 C)W=-10/
nc = 13 1. Find the charge in the volume defined by 1<r<2m, in the spherical coordinates if pv = (No cos?0)/r* (uC/mº). 2. Given that D = 7r2 a, + Nc sin 0 ag in spherical coordinates, find the charge density. 3. Find the work done in moving a point charge Q = - 20 uC from (4,2,0)m to the origin in the field E = (x/2 + 2y) ax + Nc xay (V/m). 1
WEEK 3, QUESTION 1 Recall: by definition work done by a force after moving an object through displacement Electric force (3.00î - 4.00j) x 103N moves a charge q2.0 mC through a distance d (1.01 1.07) cm. What is the work done by the electric field? A) W 10)
3. A charge O is uniformly distributed around a thin plastic ring lying in the yz-plane with the ring center at the origin O. A charge q is located on the x-axis a distance d from the origin. If the ring radius is R, develop an expression for the amount of work that must be done by an extemal force to move charge q to the point O. Assume that both O and q have the same sign: that is,...
QUESTIONS 1. (30p)The cylindrical closed surface with radius R length L is placed into a nan uniform electrical filed (Ē = (3x2 + 2)2)) as shown in the figure.; a. (15p) Find the total electric flux passing through the closed surface.. b. (15p) Find the total electric charge inside the closed surface. L È R 2. (40p)A conductive spherical shell of inner radius 2R and outer radius 3R is caries a net charge -3Q. The total charge of an insulating...
Qa 2 A semi-infinite line of charge of charge per unit length 1 is placed on the positive î-axis. A semicircular arc of charge of radius a is joined to it at the origin, with its centre on the ġ-axis, at a distance a away, as shown. The total charge on the semicircle is Q. a. [5 points] Determine the electric field at a point i = yỹ (y > 0) due to the straight line. b. [3 points] Show...
WEEK 3, QUESTION 1 Recall: by definition work done by a force after moving an object through displacement AF.s W-F.AF. Electric force F (3.00 4.00j) x 103N moves a charge q2.0 mC through a distance d (1.01 + 1.0) cm. What is the work done by the electric field? A) W 10J B) W10 D) W 1.0 J