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Unformatted text preview: y = 0.600 m? 22.22 An insulating sphere with radius 0.150 m has uniform charge density 7.50 nC/m 3 throughout its volume. What is the electric field a) just outside the surface of the sphere? b) outside the sphere, 0.300 m from the center? C) inside the sphere, 0.075 m from its center? 22.28 Two very large nonconducting plastic sheets, each 10.0 cm thick, carry uniform charge densities 1 , 2 , 3 and 4 on their surfaces, as shown in Fig. 22.35. These surface charge densities have the values 1 = -6.00 C/m 2 , 2 = +5.00 C/m 2 , 3 = +2.00 C/m 2 , and 4 = +4.00 C/m 2 ,. Use Gausss law to find the magnitude and direction of the electric field at the following points, far from the edges of these sheets. a) Point A, 5.00 cm from the left face of the left-hand sheet. b) Point B, 1.25 cm from the inner surface of the right-hand sheet. c) Point C, in the middle of the right-hand sheet. Fig. 22.35...
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This note was uploaded on 09/08/2008 for the course PHYS 4B taught by Professor D.v during the Fall '07 term at Evergreen Valley.
- Fall '07