PHYS 102 Midterm: Rice University PHYS 102 exam1_07
7 Mar 2019
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Physics 102 spring 2007: exam #1 multiple-choice questions: two small conducting spheres attract one another electrostatically. This can occur for a variety of reasons. For questions 4 and 5, refer to the graph below, depicting the potential on the x-axis as a function of x. Page 5: originally there was a ring of eight equal charges equally spaced in a circle of radius r as shown in the gure below. What is the magnitude of the electric potential at point p located in the center of the circle after the charge is removed? (a) 0. (b) k q/r (c) 7 (k q/r) (d) ( 1 (e) ( 7. P q: a solid, conducting sphere of radius r is positively charged. The electric eld is zero at point p . P: the magnitudes of q1 and q2 are equal. The magnitude of q1 is greater than the magnitude of q2. The magnitude of q1 is less than the magnitude of q2.
