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Unformatted text preview: aliu (fa5484) HW4 mackie (20225) 1 This print-out should have 18 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. 001 (part 1 of 4) 10.0 points For the configuration shown in the figure, sup- pose that a = 6 cm, b = 19 cm, and c = 26 cm. Furthermore, suppose that the electric field at a point 9 cm from the center is measured to be 5350 N / C radially inward while the elec- tric field at a point 47 cm from the center is 230 N / C radially outward. a b c b Insulator Conductor Find the charge on the insulating sphere. Answer in units of C. 002 (part 2 of 4) 10.0 points Find the net charge on the conducting sphere. Answer in units of C. 003 (part 3 of 4) 10.0 points Find the total charge on the inner surface of the hollow conducting sphere. Answer in units of C. 004 (part 4 of 4) 10.0 points Find the total charge on the outer surface of the hollow conducting sphere. Answer in units of C. 005 10.0 points An infinite plane of charge has a surface charge density of 4 C / m 2 . The permittivity of free space is 8 . 85 10- 12 C 2 / N m 2 . How far apart are the equipotential surfaces whose potentials differ by 95 V? Answer in units of mm. 006 10.0 points Two alpha particles (helium nuclei), each consisting of two protons and two neu- trons, have an electrical potential energy of 6 . 18 10...
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- Spring '11