ECE 111 Midterm: ECE 111 University of Rochester Exam1 09
31 Jan 2019
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No computers are allowed but you may use a hand-held calculator. Do all work in the bluebook provided, clearly indicating answers. Partial credit is more likely for neat, well-organized solutions. Specify units in all numerical answers and do not overstate or understate their precision. Consider the circuit below. (a) find the thevenin equivalent by solving for the open circuit voltage and short circuit current. Fully explain your methods in words and appropriate ckt diagrams. (b) carefully plot vout versus i. Hint: an effective way to do part (b) is to select convenient numerical values (in ) for the two resistors that achieve the voltage ratio, and then perform the worst-case analysis using these values with their assumed 3% tolerances. For the circuit below, find the current i in amps flowing through the 2-ohm resistor at the right side of the circuit by direct application of the superpositi on princi ple. Explain your method fully in words using appropriate circuit diagrams.
