PH 102 Final: ph102_sum08_final
Document Summary
Summer ii 2008: answer all questions below. The capacitor is not connected to a battery. Suppose the plates are pushed together until they are separated by a distance d < d. 2: in the gure below, a point charge 1q+ is at the center of an imaginary spherical gaussian surface and another point charge 2q+ is outside of the gaussian surface. Point p is on the surface of the sphere. A charge q is placed on the center of the base of the pyramid. What is the net ux of electric eld emerging from one of the triangular faces of the pyramid? (cid:3) uncertain: we must know whether q is just above or below the base. (cid:3) 0 (cid:3) (cid:3) (cid:3) 2 0: two charges lie on the x-axis. A representation of the equipotentials of the electric potential of these two charges is shown at right. The streaks in this representation are parallel to the equipotential curves.
