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Physics 196 Fall 2010 Midterm I solutions

Physics 196 Fall 2010 Midterm I solutions - Name film i i...

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Unformatted text preview: Name: film. i__ i — ID: A - ' 5. A long nonconducting cylinder (radius = 12 cat} has a charge of uniform density (5.0 110111!) distributed Phil“ 1“ Fill}0fl],l‘lfldttrm #1 throughout its column. Determine the magnitude of the electric field 5.!) cm from the axis cfthe cylinder. a. 25 NJC Multiple ctntce- - "' ' b, 2o MC identity the choice that but container the rtutenterrr 9r tmlrwslrs the question. i a N it: . 31 NFC I. lfa=3.flmni.b'4.0mm.t?tn—mlepailnC.entity-3!!nCinfltcfiguremhntisthemtaniludeof e. SANG the total electric force on 9"? . A charge of5.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm}. and a second charge of -‘2.l‘.l pC is distributed unifonnly on a concentric sphericat surface {radius - 4.0 cm). Determine the magnitude of the electric field 3.0 cm from the center ofthe two surfaces. at a. 30 NH: . 50 NC . I , ? 40 NJC H l‘ - d. 20 Ni: . :g: a. TI} MC C. . d 2 0 N T. A positive point charge a; is placed off'center inside an uncharged meta! sphere insulated from the ground as r‘ 0'50 N Show. Where is the induced charge density greatest in magnitude and what is its sign? 2. A Ié-nC elmge it distributed unilnn'nly along their axis from J . 0 to .l.’ - 4 111. Which thl'lht following integnlt is correct for the magnitude (in NC) orlhe cloctric field at x - + I0 m on the x axis? 36d: (Io—Jr)a [Mt (lD—xr Q Amegatt'w. [E . a: positive. e. .t' c. B: negative. in 154d: d. B: positive. e. C: negative. . I 3 8. Four identical point charges (+6.0 :10 are placed at the corners cfa rectangle which measures 6.0 In x 8.0 m. '- none “NW" . ._ _ lfthe electric potential is taken to be zero at in fin'tt)’. what is the potential at the geomtric center ofthis 3. Two imaginary lplifliE-tli surmes ofradlus R and it mpucmlr surround a pawn: pom Wren Q “It“ rectangle? at the center ofthe concentric spheres. When compared to the number of field lines N. going through the & 58 V sphere of radius ill. the number ol'eiectrie field lines N: going through the sphere of radius 2!! I! h. 63 V I 43 V l N: ‘ 3N1. . 84 v e. i 1 V l b" N: ‘ EN“ __ 9. A charge of +3.0 [13 is distributed untfon'nly along the circumference ot-‘a circle with a radius of20 crn. How 9 N, - Ni. much extemal energy is required to bring a charge ofzsn: from infinity to the center ofthe circle? . Mal-Wi- a. 5.4] e. N] " 40}. ® 3.4] 4. A charge small 11C is platted at the center oi'n cube that measures 4.0 m along each edge. What is the c 43] electric flux through one free ofthe cults? d. 2.? J a. 90 N . m'iC e. 6.8] Is N - m'iC :. 45 N . m'ic ll. 33 N . mIiC e. 64 N . mill: NI . ID: A I0. Asalid :mdncllngnphnr(mflim-S.0emlllnsl:hhgn ul'fl.25nCdbllhfldwifmlyuhmflm." 1 FORM A peIMAiilocualeM:mmofIhn-pbqumdpo1llflii|$=mfmmfll¢ocmmhhniswmgailmeuf I — "I tlecule palm!“ dil‘l‘mnoe [mum um- um paint? L 23V @Jov c. ISV :. 6|] ‘1' 1 I. MI»: [III (qulnlnt apt-rim: oflhe mblnlion Ilvmm when t‘ I Is If. “T": :—o.32hl+ 1.35»: Loud flux 1an iFW :JgfbflL- 1°) men SPH€RI<AL CHAQGE As Pom (mange AT ITS 66mm 001' E7: Ant, $106 W \I’ 6? = CV :émfiFX'w _-_-_ 2313;},q'L-C = 5333'ch ...
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