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Figure 21-37 Problem 38.
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- Initially a glass rod and a piece of silk are neutral. After you rub the silk against the rod, the glass rod has a surplus of 3.33 1011 protons. What is the charge q of the silk?arrow_forwardThree identical conducting spheres are fixed along a single line. The middle sphere is equidistant from the other two so that the center-to-center distance between the middle sphere and either of the other two is 0.125 m. Initially, only the middle sphere is charged, with qmiddle = +35.6 nC. The middle sphere is later connected by a conducting wire to the sphere on the left. The wire is removed and then used to connect the middle sphere to the sphere on the right. The wire is again removed. a. C What is the charge on each sphere? b. C Which sphere experiences the greatest electrostatic force? c. N What is the magnitude of that force?arrow_forwardTwo metal spheres, each of radius 4.4 cm, have a center-to-center separation of 1.9 m. Sphere 1 has a charge of +1.1 × 10-8 C; sphere 2 has a charge of -3.3 × 10-8 C. Assume that the separation is large enough for us to assume that the charge on each sphere is uniformly distributed (the spheres do not affect each other). With V = 0 at infinity, calculate in volts (a) the potential at the point halfway between their centers and the potential on the surface of (b) sphere 1 and (c) sphere 2.arrow_forward
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- Consider three identical metal spheres, A, B, and C. Sphere A carries a charge of +8q. Sphere B carries a charge of -q. Sphere C carries no net charge. Spheres A and B are touched together and then separated. Sphere C is then touched to sphere A and separated from it. Lastly, sphere C is touched to sphere B and separated from it. (a) What is the ratio of the final charge on sphere C to q? What is the ratio of the final total charge on the three spheres to q (b) before they are allowed to touch each other and (c) after they have touched? (a) (b) (c)arrow_forwardTwo identical conducting spheres A and B are initially electrically neutral. Sphere A is given a charge of Q. The two spheres are then touched together, allowing charge to distribute evenly, and then separated. After separation, an external source removes a charge of Q/4 from sphere A. The two spheres are then touched together again and separated. What is the final charge on each sphere? Note: Assume the conductors and the interactions are ideal, meaning no loss of charge to the environment.arrow_forwardTwo conducting spheres, A and B, have the same radius and sit on insulating stands. When they are touched together, 3.05×1013 electrons flow from sphere A to sphere B. If the total net charge on the spheres is +2.10 μC, what was the initial charge on sphere B?arrow_forward
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