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2876497189

# 2876497189 - y = 0.600 m 22.22 An insulating sphere with...

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PHYSICS 4B Chapter 22 22.2 The cube in Fig. 22.32 has sides of length L = 10.0 cm. The electric field is uniform, has a magnitude E = 4.00 × 10 3 N/C, and is parallel to the xy-plane at an angle of 36.9 ° measured from the +x-axis toward the +y-axis. a) What is the electric flux through each of the six cube faces S 1 , S 2 , S 3 , S 4 , S 5 , and S 6 ? b) What is the total electric flux through all faces of the cube? Fig. 22.32 22.13 A sphere centered at the origin has radius 0.200 m. A –5.00 μ C point charge is on the x-axis at x = 0.300 m. The net flux through the sphere is 360 N m 2 /C. What is the total charge inside the sphere? 22.19 A very long uniform line of charge has charge per unit length 4.80 μ C/m and lies along the x-axis. A second long uniform line of charge has charge per unit length – 2.40 μ C/m and is parallel to the x-axis at y = 0.400 m. What is the net electric field (magnitude and direction) at the following points on the y-axis: a) y = 0.200 m? b)

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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 σ 1 , σ 2 , σ 3 and σ 4 on their surfaces, as shown in Fig. 22.35. These surface charge densities have the values σ 1 = -6.00 μ C/m 2 , σ 2 = +5.00 μ C/m 2 , σ 3 = +2.00 μ C/m 2 , and σ 4 = +4.00 μ C/m 2 ,. Use Gauss’s 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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