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Density, density, density. (a) A charge −300e is uniformly distributed along a circular arc of radius 4.00 cm, which subtends an angle of 40°. What is the linear charge density along the arc? (b) A charge −300e is uniformly distributed over one face of a circular disk of radius 2.00 cm. What is the surface charge density over that face? (c) A charge −300e is uniformly distributed over the surface of a sphere of radius 2.00 cm. What is the surface charge density over that surface? (d) A charge −300e is uniformly spread through the volume of a sphere of radius 2.00 cm. What is the volume charge density in that sphere?
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FUNDAMENTALS OF PHYSICS - EXTENDED
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