EECS 215 Exam 2 Fall 2005

EECS 215 Exam 2 Fall 2005 - EECS 215 Fall Term 2005 Midterm...

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1 EECS 215 Fall Term 2005 Midterm Exam II N a m e : Lecture Section McAfee Phillips Rules: 1. Monday, November 14, 2005, 6:00 to 7:30 PM nominal exam time. DO NOT DISCUSS THIS EXAM WITH ANYONE PRIOR TO 6 PM November 15!! 2. Closed Book, etc. 3. 1 Page (8.5”x11”, double sided) of notes allowed 4. Calculators Needed and Allowed. No devices with full alphanumeric keyboards are permitted. 5. Exam is given under the College of Engineering Honor Code principles and practices. 6. No communications of any kind are allowed. Use of cell phones, cameras, personal data assistants, computers, or any other electronic devices, besides approved calculators, will be treated as an Honor Code violation. 7. Work to be done in Exam booklet. Turn in all pages of the exam. Do not unstaple the pages . 8. DO NOT WRITE ON THE BACK OF PAGES. Work on backs of pages will NOT be graded. 9. Show your work and briefly explain major steps to maximize partial credit. (for example: i3=i1+i2, KCL at node A). NO CREDIT WILL BE GIVEN IF NO WORK IS SHOWN. 10. WRITE YOUR FINAL ANSWERS IN THE AREAS PROVIDED This Exam Contains 4 problems over 21 pages (including ample workspace). Sign the College of Engineering Honor Code Below. (NO credit will be given for the exam without a signed pledge): I have neither given nor received aid on this examination. Signed:______________________________________ Do not write below this line ************************************************************************ Problem 1 [ a b c ] Problem 2 [ a b c ] Problem 3 [ a b ] Problem 4 [ a ]
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2 Problem 1: Op-Amp Circuit Analysis (25 points) The op-amp circuit shown has five (5) unknown node voltages ( V O , V A , V B , V C , V D ). V O + R F = 50 K R 3 20 K R 4 40 K V S1 4 Volts R 1 = 20 K R 2 40 K V S3 = 4 Volts I S2 0.1 mA I S4 0.1 mA V B V A V D V C I O Gnd = Reference Node R 1 = 20 K R 2 = 40 K R 3 = 20 K R 4 = 40 K R F = 50 K V S1 = 4 Volts I S2 = 0.1 mA V S3 = 4 Volts I S4 = 0.1 mA a) Derive the numerical values for the node voltages (V O , V A , V B , V C , V D ). In the box/table on page 2, enter the values for the node voltages. Round each voltage answer to the nearest millivolt (mV) and be careful to specify the sign of the voltage. In the box/table on page 3, CLEARLY indicate the equations you solved to derive the node voltage values. The only unknowns in the equations should be node voltages (V O , V A , V B , V C , V D ). For each equation Circle whether it is a KVL (voltage units) or a KCL (current units) equation . Show your intermediate work on the following pages.
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This test prep was uploaded on 04/04/2008 for the course EECS 215 taught by Professor Phillips during the Winter '08 term at University of Michigan.

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EECS 215 Exam 2 Fall 2005 - EECS 215 Fall Term 2005 Midterm...

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