A large, flat, horizontal sheet of charge has a charge per unit area of 5.30 µC/m2. Find the electric field just above the middle of the sheet. magnitude   kN/C direction  ---Select--- upward downward

Two 10-cm-diameter charged rings face each other, 15.0 cm apart. Both rings are charged to +50.0 nC. What is the electric field strength

A -9.25 nC point charge is located at the center of a conducting spherical shell. The inner/outer radii of this shell are 1.5 m and, respectively, 2.3 m. A 10 nC charge is distributed on the spherical shell. What is the magnitude of the electric field at a. r= 1.1 m? Submit Answer b. r= 1.9 m? Submit Answer Incompatible units. No conversion found between "nc" and the required units. Incorrect. Tries 1/10 Previous Tries c. r = 2.6 m? Submit Answer Incorrect. Tries 1/10 Previous Tries d. What is the charge density on the outside surface of the conducting shell? Submit Answer Incorrect. Tries 1/10 Previous Tries Tries 1/10 Previous Tries

The entire y axis is covered with a uniform linear charge density 3.6 nC/m. Determine the magnitude of the electric field on the x axis at x=9.6m

A penny is in an external electric field of magnitude 2.5 kN/C directed perpendicular to its faces. (a) Find the charge density on each face of the penny, assuming the faces are planes. nc/m2 (b) If the radius of the penny is 1 cm, find the total charge on one face. pC

+Q А -Q В C D There are two concentric charged hollow spheres. The inner sphere has a radius of 1 cm and a charge +Q. The outer sphere has a radius of 2 cm and a charge of -Q. Point A is inside the inner sphere, B and C are in the empty space between spheres, and point D is outside both spheres. At which point would you measure the largest electric field? O a. A O b. B O c. D o d. C