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Chapter 22: Problem 10
Can equipotential surfaces intersect? Explain.
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Find the magnitude of the potential difference between two points located \(1.4 \mathrm{m}\) apart in a uniform \(650-\mathrm{N} / \mathrm{C}\) electric field, if a line between the points is parallel to the field.
Must the potential be zero at any point where the electric field is zero? Explain.
A uranium nucleus (mass 238 u, charge \(92 e\) ) decays, emitting an alpha particle (mass 4 u, charge 2e) and leaving a thorium nucleus (mass 234 u, charge \(90 e\) ). At the instant the alpha particle leaves the nucleus, the centers of the two are 7.4 fim apart and essentially at rest. Treating each particle as a spherical charge distribution, find their speeds when they're a great distance apart.
Two points \(A\) and \(B\) lie \(15 \mathrm{cm}\) apart in a uniform electric field, with the path \(A B\) parallel to the field. If the potential difference \(\Delta V_{A B}\) is \(840 \mathrm{V},\) what's the field strength?
A solid sphere contains positive charge uniformly distributed throughout its volume. Is the potential at its center higher than, lower than, or the same as at the surface?
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