Shown in the figure below is a point charge surrounded by two conducting spherical shells (Shell 1 and Shell 2). You are to fill in the table of all charges and all fields given the following subset of information: Point Charge, QP = -3 ?Coulombs Shell 1 outer, Q1outer = 12 ?Coulombs Shell 2 outer, Q2outer = 7 ?Coulombs Charge Inner Surface Outer Surface Total Point Charge -- --   Shell 1       Shell 2

Three small point charges lie on a straight line in vacuum as shown. Find the distance (in m) between the left charge and the middle charge along the line such that the net force acting on the middle charge is zero. 18 μC -4.0 με 9.0 μC 0.13 m O .054 O.076 O .066 O.084

6| 17 aölJI - 2 uacl X 10 uluilg (-) X Content Google dai X 9 https://blackboard.uob.edu.bh/ultra/courses/ 24065 1/cl/outline Not syncing Remaining Time: 29 minutes, 53 seconds. * Question Completion Status: Consider a uniformly charged ring of radius R-0.2 m and linear charge density 2-3 µC/m as shown in the figure. Find the electric potential (in V) at (p) a distance 0.7 m from the center. 0 0.7 m 3.1x 10* 6.2 x 104 O9.3x 104 7.8x 104 O 4.7x10 7:05 PN 4/3/202 arch

Three charged marbles, labeled 91, 92, and 93, are oriented such that 92 is between 9₁ and 93. The charge on 92 is -14.8 µC. E field lines (a) 9₁ and 93 have what sign of charge? 91 ---Select--- V 93 ---Select--- V (b) If the magnitude of the charge on q₁ is 8.4 μC, what is the magnitude of charge on 93? uC

Question= Two small spheres spaced 20.0 cmcm apart have equal charge. 1. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 5.78×10−21 NN? Express your answer as number of electrons.

d) -y e) more information is needed to determine 34. Three concentric conducting spherical shells have inner and outer radii of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 meters. The inner shell has a net charge of -1C, the middle shell has a net charge of -2C, and the outer shell has a net charge of -3C. There are no other charges in the system and all charges remain at rest. What is the surface charge density on the inner surface of the largest shell?