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Figure 21-37 Problem 38.
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- There are 4 conducting spheres all identical material and surface area. Sphere B has an initial charge of -32e. Sphere C has an initial charge of +48e. Sphere D is neutral initially and sphere A is not neutral initially . Sphere D touches sphere A, then touches sphere B then touches sphere C and the net charge on sphere D is +18e. What was the initial charge on sphere A?arrow_forwardTwo metal spheres, each of radius 4.0 cm, have a center-to-center separation of 2.9 m. Sphere 1 has a charge of +1.4 × 10-8 C; sphere 2 has a charge of -4.0 × 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. (a) Number i (b) Number i (c) Number i Units Units Unitsarrow_forwardTwo metal spheres, each of radius 3.4 cm, have a center-to-center separation of 2.5 m. Sphere 1 has a charge of +1.2 × 10-8 C; sphere 2 has a charge of -3.2 × 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 +6q. 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 g (b) before they are allowed to touch each other and (c) after they have touched? (a) Number |Units (b) Number Units (c) Number Unitsarrow_forwardFour identical metallic spheres with charges of +9.0 μC, +6.6 µC, -1.8 μC, and -5.2 μC are placed on a piece of paper. The paper is lifted on all corners so that the spheres come into contact with each other simultaneously. The paper is then flattened so that the metallic spheres become separated. (a) What is the resulting charge on each sphere? UC (b) How many excess or absent electrons (depending on the sign of your answer to part (a)) correspond to the resulting charge on each sphere? electrons ar ✔ ---Sele--- absent in excessarrow_forwardSuppose there are four identical conducting spheres: A, B, C, and D. In each scenario, sphere A starts with a charge of −?,sphere C starts out with a charge of +Q, and spheres B and D start out neutral. Then, the spheres are touched to each other and separated in the order described. Any spheres not in contact are held very far away. For each scenario, give the final charge of sphere D as a whole‑number fraction of ?. For example, if the final charge of sphere D is −?/7, enter "−1" in the numerator and "7" in the denominator. Remember, before each scenario begins, spheres A, B, C, and D are reset to charges of −?, 0, +?, and 0 again. Scenario 1: A and B touch and are separated, then B and D touch and are separated, then C and D touch and are separated ?D=?×arrow_forward
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