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Chapter 23: Q25P (page 680)
An infinite line of charge produces a field of magnitudeat distance 2.0 m. Find the linear charge density.
The linear charge density is .
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A proton at speed v = 3脳105m/sorbits at radius r = 1.00 cmoutside a charged sphere. Find the sphere鈥檚 charge.
A charge of 6.00 pCis spread uniformly throughout the volume of a sphere of radius r = 4.00 cm. What is the magnitude of the electric field at a radial distance of
(a) 6.00 cmand
(b) 3.00 cm?
A thin-walled metal spherical shell of radius a has a charge. Concentric with it is a thin-walled metal spherical shell of radius and charge . Find the electric field at points a distance r from the common center, where
(a)
(b) and
(c)
(d) Discuss the criterion you would use to determine how the charges are distributed on the inner and outer surfaces of the shells.
Figure 23-34 shows a closed Gaussian surface in the shape of a cube of edge length 2.00 m. It lies in a region where the non-uniform electric field is given by , with xin meters. What is the net charge contained by the cube?
The electric field just above the surface of the charged conducting drum of a photocopying machine has a magnitude Eof . What is the surface charge density on the drum?
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