Ex1_Sp06 - P hysics 2 41 - Exam # 1 This e xarri corlsists...

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Physics 241 - Exam #1 This exarri corlsists of 13 problcms on 9 pages. Plcasc check that you have thein all. Each problem is wvrth 12 points except #13 which is ulort b li points. Thc maximum score possible is 150. All of the formulas that you will need are given below. You ruajr also usc a calculator av Ex= -- 1 1 Volt = 1 J / C 1 Voltlm = 1 N / C UE = -qV 4 C= - ax 2 v foA parallel plate capacitor : C = - d isolated spherical capacitor : C = 4.7r~~ R capacitors in parallel : C = Cl + C2 + C3. .. 1 11 1 capacitors in series : - = - + - + -... c c1 C3
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11 1 1 resistors in parallel : - = - + - + - .. q(l) -- qoc -r/(f;Cj = qoe-1/7 R R1 R2 R3-
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I. 'six electrons are placed on n r~~tht .,I s~~li,,:.~. Ti the: pot,el~tiiil of the s1)hcr.c is -35 V. what the radius of the sphcrc? (a) 4.6 x lO-'' 1x1 (b) 9.0 x lop9 m (c) 4.1 x lo-' rn c@w (e) 5.0 x 10-'' m 2. Two thin insulating shells have radii R1 = 0.50 m and Rp = 1.5 In. Both shells are charged uniformly: the outer shell has a total charge +3.5 C, wl~ile the inner shell carries an unknown amount of charge. If the electric field outside the - bigger shell is zero, what is the electric potential difference between the two shells? 70 7- IMC~ g&dL;& ?-3/CC ' $ $2 >IUIY~ &6-.b
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This note was uploaded on 04/12/2011 for the course PHY 241 taught by Professor Virgil.e.barnes during the Spring '11 term at Purdue University-West Lafayette.

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Ex1_Sp06 - P hysics 2 41 - Exam # 1 This e xarri corlsists...

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