G. The drawing you have on the previous page should look like the one shown below. On this diagram, show the location of all the charge that is enclosed within the cylinder. This will be useful when finding the enclosed charge for applying Gauss's law. L H. Apply Gauss's law and solve for the magnitude of the electric field caused by the line of charge. (The curved area of a cylinder is equal to 2?L.) The only other situation where Gauss's law can be used to calculate the electric field (aside from variations of the spherical symmetry, e.g., a single charge inside a conducting sphere) is an infinitely long plane with a surface charge + (charge per unit area) E to (infinitely large sheet of charge) E Last week, you learned that in this situation, the electric field is constant (does not depend on distance from the sheet) and has a magnitude of: E = 280