No calculators or books are needed or permitted. However, you are allowed a formula sheet (two pages of us letter size paper). Problems are on both sides of this page. Even if you don"t know how to solve the problem, you may get partial credit if you state in words what you think is happening and why. Please draw large and clear picture and label them. Express all answers in terms of the variables de ned in the problem: [25 points] at each corner of a square of side a is a particle with charge +q. Problem 1problem 2two infinite thin chargedplanes intersecting at the z axis2. [25 points] two uniformly charged in nite thin plates intersect at 90o. One coincides with the x z plane and carries the surface charge density of 2 . Problem 3problem 4an isosceles triangleinfinite wire withlinear charge densitycylindrical cloudof radius r withvolume chargedensity bob ofmassandcharge4.
