Exercise 22.9 6 of 16 Part A A charged paint is spread in a very thin uniform la
ID: 1580688 • Letter: E
Question
Exercise 22.9 6 of 16 Part A A charged paint is spread in a very thin uniform layer over the surface of a plastic sphene of diameter 15.0 cm.giving it a charge of -29.0 C Express your answer with the negative value if the field is directed toward the center of the sphere. away from the center of the sphere and E-Value Uits Find the cloctric field just outside the paint laye Express your answer with the appropriate units. Enter positive value if the field is directed away from the canter of the sphere and negative value if the field is directed toward the center of the sphera E Value Units Part C Express your answer with the appropriate units. Enter posave value·the field is directed away from the center of the sphere and negative value if the field is directed soward the center of the sphere.Explanation / Answer
a) E = 0
b) integral [E.dA] = qin/e0
E (4 pi r) = -29 * 10-6 / e0
E = -29 * 10-6 * 9 * 109 / 0.0752
= 4.64 * 107 N/C
c) E (4 pi r) = -29 * 10-6 / e0
E = -29 * 10-6 * 9 * 109 / (0.075 + 0.08)2
= 1.08 * 107 N/C
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