2009 test2 - Page 1 Materials 1M03, Test #2 2009 Version...

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Page 1 Materials 1M03, Test #2 2009 March. 3, 2009 Version (1) Last Name:_____ Model Solutions ________ First Name: ______________________ Student ID#: _________________________ Tutorial Section:_____________________ MATERIALS 1M03 TERM TEST #2, 2009 This test contains 10 questions. And seven pages. You are responsible for ensuring that your copy of the paper is complete. Bring any discrepancy to the attention of your invigilator. MC Q 9 Q10 Total SPECIAL INSTRUCTIONS: Aids allowed: 1 page aid-sheet, nominally 8½ by 11 in. McMaster standard Casio FX-991 calculator Answer all multiple choice questions on the special answer sheet only. Answer all written questions on the examination copy. Be sure to show your work (where applicable) so that part marks can be awarded for incomplete answers. Be sure to include units with all answers that require them. Useful constants: Gas constant, R = 8.31 J/mol-K Charge per electron, e = 1.6 x 10 -19 C Avogadro’s number, N A = 6.02 x 10 23 Boltzmann’s constant, k = 1.38 x 10 -23 J/atom-K = 8.62 x 10 -5 eV/atom-K 1cal =4.184J Page 1 of 7
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Page 2 Materials 1M03, Test #2 2009 March. 3, 2009 Version (1) Part A: This part consists of EIGHT multiple choice questions. Each question is worth 2 Marks. For each question, put your answers on the scan sheet (marked McMaster University Examination Answer Sheet). Read the Marking Directions on this sheet carefully before starting. 1. Consider the electron energy-band structures shown below. Which of these is representative of a p-type semiconductor? (a) (b) (c) (d) (d) is a p-type semiconductor because valance electrons can go to the acceptor level and create excess holes. Page 2 of 7
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Page 3 Materials 1M03, Test #2 2009 March. 3, 2009 Version (1) 2. Which of the following curves provides the most accurate description of the conductivity of a p-type semiconductor as a function of temperature?
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2009 test2 - Page 1 Materials 1M03, Test #2 2009 Version...

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