HW__7_P213_F08 - Physics 2213 Read: Homework #7 Fall 2008...

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Physics 2213 Homework #7 Fall 2008 Read: Sections 22.5, 23.1 (pp. 780-782), 23.2, Chapter 25 (all) Handouts: Conductors in Electrostatic Equilibrium; Electric Current, Voltage, Potential For study: Chap. 22: Q's #Q22.10, 11, 12, 13, 14, 16 (not turned in) E's & P's: #22.23, 26, 29, 43, 44 Chap. 25: Q's #Q25.1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 21 E's & P's: #25.17, 29, 33, 41, 43, 45, 49, 60, 75 To be discussed in recitations on October 15-17, to be quizzed the week of October 20-24: #22.31 [Charge in a Cavity] #22.48 [Concentric Spheres] #22.51 [Conducting Plate] #25.3 [Electrons in a Wire] #25.55 [Electric Heater] #1. [Fair Weather Atmospheric Electricity] During fair weather an electric field exists throughout the Earth's lower atmosphere that is everywhere directed vertically downward and has magnitude roughly E o 130 V/m near the Earth's surface. The strength of this fair weather electric field E(y) decreases with height y above the ground, and a simplified expression for its
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