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Quiz9_solutions_Spring2010

Quiz9_solutions_Spring2010 - Quiz 9 ChE 350 Spring 2010 M...

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Unformatted text preview: Quiz 9; ChE 350 Spring 2010 _ M Kb? Name: 1. Consider a cylindrical wire of p—type silicon silicon that is 10 pm long and 20 nm in diameter with an electrical conductivity of 1.6 Q'lcm'1 . The hole mobility in the silicon wire is 100 csz~l sec"l . (lel =1.6 x 10*%) Lg} (a) Estimate the electrical current that will flow down the wire when 2 V is applied down the length of the wire. 8 . a 2 ’ A ' QM; gown Answer. 1 01 lo < lOMm 5 i z 10—1Lfcm?’ z , 7- : 4‘ no M , " 2 mt , Mme \< w < , Wow '7 9—— » _ H} ' ‘UCLK KZWMMT/WW a j - L. . _ n - #3 {,<\) (b) Estimate the carrier Concentration in the wire. Answer: 1 o O x l o Cm J , V“ 5r“ :w\L\/tq+plL\/w K '0V\ fig ROMS Conaw‘l‘rA/‘h l tweetpé : MM 1 ‘5 «>9? y} {7 ...
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