Four infinite, nonconducting, thin sheets are arranged as shown. Sheet C has a uniform surface charge density of 50. The other three sheets have uniform surface charge densities of -20,-40, and 30 in some unknown order. In order to determine which charge densities belong to which plates, you make two electric field measurements, at the points labeled 1 and 2. Taking right to be the positive direction, the electric fields at these two points are 50 E Place the surface charge densities on the plates in an arrangement that would result in the measurements. Then, indicate the location at which the magnitude of the electric field is greatest. %A= || E Sheet A Sheet B left of A. between C and D. %B= between A and B. between B and C. right of D. The magnitude of the electric field is greatest %c = +50 Sheet C %D Sheet D T Answer Bank