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Unformatted text preview: Untitled Document University of California at Berkeley College of Engineering Dept. of Electrical Engineering and Computer Sciences EECS 40 Midterm II Spring 2001 Prof. Roger T. Howe April 11, 2001 Name: ______________________ Student ID _____________ Last, First Guidelines 1. Closed book and notes; one 8.5 x 11 page (both sides) of your own notes is allowed. 2. You may use a calculator. 3. Do not unstaple the exam. 4. Show all your work and reasoning on the exam in order to receive full or partial credit. Score Problem Points Possible Score 1 18 2 18 3 14 Total 50 1. Equivalent circuits [18 points] file:///C|/Documents%20and%20Settings/Jason%20Raft...-%20Spring%202001%20-%20Howe%20-%20Midterm%202.htm (1 of 7)1/27/2007 5:11:22 PM Untitled Document (a) [4 pts.] Using Kirchhoffs Current Law (KCL) at node X, find an equation relating the current i1 and the voltage Vab. Write your answer in the box. Answer to 1 (a): (b) [5 pts.] Find the numerical value of the Thevenin voltage across terminals A and B (A positive) for this circuit. Your answer to part (a) should be helpful; write your answer in the box provided. Answer to 1 (b): Vth = V (c) [5 pts.] Find the numerical value of the Thevenin resistance RTH in kW across terminals A and B. Write your answer in the box provided....
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- Spring '07
- Electrical Engineering