MT 2 solns

MT 2 solns - University of California at Berkeley...

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University of California at Berkeley Department of PhYsics Physics 88, Spring 2009, Section 1 Second Midterm Exam April 13, 2011 You will be given 120 minutes to work this exam. No books or calculators are allowed, but you may use two sides of handwritten notes on paper no larger than 8.5" by 11". Do not use a blue book or scratch paper other than that provided. your description of the physics involved in a problem is worth _ significantly more than any numerical answer. Show all work and take iarticular care to explain what you are doing. Please use the symbols described in the problems, tell us why you are writing anJ new equations, and label any drawings that you make' Write the answers in the space following the qtestion" after you hive decided on y:ur answer' If there axe parts of your solution on other sireets, make a note- in the answer space telling.us 1vhe1e to look for the additional information, and label that information with the number of the problem. Write clearly; if we can't read it we can't sive credit. NAME: P o ,€ k rr- va.---{.'2- 1 (25 pts.) 2 (30 pts.) 3 (25 pts.) a (30 pts.) 5 (30 pts.) 6 (20 pts.) 7 (20 pts.) 8 (20 pts.) Total (200 pts.) SID NUMBER: DISCUSSION SECTION NUMBER: DISCUSSION SECTION DAY/TIME: Constants : c : 3 x 10o m/sec, 1 nanometer: 10-9 m, I micrometer: Physics 8B-L,'11. MT Z P. 1 a .-5
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1) Maxwell's Equations are supposed to be able to explain all electromagnetic field phenomena. (A) Which of Maxwell's Equations is/are most applicable to explain the behavior of a capacitor? Write the 'ee't'B:Fq::'Ht'Iii::*'i1'.:"ffi:T Lro.d 4(e-{1'c. {e-tds --'"e {'o*' ele{ri. eAa-^f1"' t rzr a- aa-f 6- e (-t-O l' ; q-1 o'adc o-\ € \'4c,{r ia Ena- V ,tA At-42fu2 €t-ta-rq?s @rv'e ptcr-cccQ* owr' p ta$c-s <}-'Y.t€l- $,"ie '7o. vocr-1ej Cl o/v ) V= a/c ' '6 /'"1- E|- a\./av. ., (B) Which of Maxwell's Equations is/are most applicable to explain the behavior of an inductor? Write the applicable$quati-on(s) and describe the connection. F4? = t. -#,,"* cla,,n4e s. vr,"-.""1i.Qfic *Jr-^Yl]",".'-*I;;/, cu rr'tu.f 1'^r'a. ero ancs tl^A V= -LWa,r)v ,e lo,.r ,tF-'."r+ ' r I n t'Lr /Ylar u/e f'\ a'trn ' va soe; b4e6g, (r'^ t Yl uJa".cleJ , (C) Which of Maxwell's Equations is/are most applicable to explain the behavior of electromagnetic waves? il'';t*:y t:1. . *-i;^ ) a'-'-," p^''-'r71/i T\r. br*ala- Pit-at.*tt
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This note was uploaded on 05/02/2011 for the course PHYS 8B taught by Professor Catherinebordel during the Spring '10 term at Berkeley.

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MT 2 solns - University of California at Berkeley...

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