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Chapter 23: Problem 10
A negatively charged particle revolves in a clockwise direction around a positively charged sphere. The work done on the negatively charged particle by the electric field of the sphere is a) positive. b) negative. c) zero.
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A deuterium ion and a tritium ion each have charge \(+e .\) What work is necessary to be done on the deuterium ion in order to bring it within \(10^{-14} \mathrm{~m}\) of the tritium ion? This is the distance within which the two ions can fuse, as a result of strong nuclear interactions that overcome electrostatic repulsion, to produce a helium-5 nucleus. Express the work in electron-volts.
Why is it important, when soldering connectors onto a piece of electronic circuitry, to leave no pointy protrusions from the solder joints?
A classroom Van de Graaff generator accumulates a charge of \(1.00 \cdot 10^{-6} \mathrm{C}\) on its spherical conductor, which has a radius of \(10.0 \mathrm{~cm}\) and stands on an insulating column. Neglecting the effects of the generator base or any other objects or fields, find the potential at the surface of the sphere. Assume that the potential is zero at infinity.
Two point charges are located at two corners of a rectangle, as shown in the figure. a) What is the electric potential at point \(A ?\) b) What is the potential difference between points \(A\) and \(B ?\)
Three charges, \(q_{1}, q_{2},\) and \(q_{3},\) are located at the corners of an equilateral triangle with side length of \(1.2 \mathrm{~m}\). Find the work done in each of the following cases: a) to bring the first particle, \(q_{1}=1.0 \mathrm{pC},\) to \(P\) from infinity b) to bring the second particle, \(q_{2}=2.0 \mathrm{pC}\) to \(Q\) from infinity c) to bring the last particle, \(q_{3}=3.0 \mathrm{pC}\) to \(R\) from infinity d) Find the total potential energy stored in the final configuration of \(q_{1}, q_{2},\) and \(q_{3}\)
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