215 HW set _8 - EECS 215F07 Problem Set #8 Assigned: Due:...

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1 EECS 215F07 Problem Set #8 Assigned: 11/7/07 Due: 11/14/07 Homework is due at the beginning of lecture. Reading Assignment: Alexander and Sadiku, Chapter 8 General Advice on Homework: 1. 1. Start early. Don’t wait till Tuesday night. 2. 2. Be sure to draw the circuit and label it properly with reference directions for currents and reference polarities for voltages. 3. 3. Show all the important steps in your calculation. 4. 4. Textbook problems are from the course textbook, “Fundamentals of Electric Circuits,” 3 rd Edition . The individual problem statements follow on the next pages. 1. For the circuit below: +- i g R g R 1 R 2 R 3 i L L i L a) Find the differential equation that relates i L (t) to i g (t) b) Now assume L=1 H, R 1 =R 2 =R g =10 Ω, and R 3 =5 Ω. If i g =1A for t 0 and ig=2A for t>0, find i L (t) for t>0.
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2 2. Chapter 7, Problem 75 MODIFIED. In the circuit of Fig. 7.140, find v 0 and i 0 , given that v s (t) = 2 u(-t) +4 u ( t )+2 u(t-40ms) .
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215 HW set _8 - EECS 215F07 Problem Set #8 Assigned: Due:...

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