Three identical charges (q = -6.7 uC) Ilie along a circie of radius 3.0 m at angles of 30°, 150°, and 270°, as shown in the figure below. What is the resultant electric field at the center of the cirde? 150 30 270° N/C

Current Attempt in Progress The figure is a section of a conducting rod of radius R₁ = 1.50 mm and length L = 12.70 m inside a thin-walled coaxial conducting cylindrical shell of radius R₂ = 11.2R₁ and the (same) length L. The net charge on the rod is Q₁ +3.63 × 10-¹2 C; that on the shell is Q₂ = -2.27Q₁. What are the (a) magnitude E and (b) direction (radially inward or outward) of the electric field at radial distance r = 2.19R2? What are (c) E and (d) the direction at r= 5.22R₁? What is the charge on the (e) interior and (f) exterior surface of the shell? (a) Number R₂ Ri O 2₂ Units SUPPORT

A charge Q = -10 nC sits at the center of a thick uncharged conducting spherical shell with inner radius R1 = 3.0 m and outer radius R2 = 4.0 m. Find the magnitude and direction of the electric field at a distance of (a) 2.0 m, (b) 3.5 m, and (c) 4.5 m away from the charge. R. R, 1.

At each point on the surface of the cube shown in the figure the electric field is parallel to the z axis. The length of each edge of the É cube is 2.4 m. On the top face of the cube the electric field - - 27k N/C and on the bottom face it is E +23k N/C Determine the net charge contained within the cube. Number i T Units