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test4V2

# test4V2 - EE2120 TEST No 4 NAME(please print SSN...

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Unformatted text preview: EE2120 TEST No. 4 April 30, 2004 NAME (please print) SSN INSTRUCTIONS Failure to follow these instructions may result in your work NOT being accepted for credit. • DO NOT OPEN THIS TEST UNTIL THE INSTRUCTOR TELLS YOU • All work is individual. Concentrate on your own paper at all times • STOP WORKING AS SOON AS THE INSTRUCTOR TELLS YOU • When instructed, walk to the front and leave your work on the instruc- tor’s desk • If you finish ahead of time, walk to the front and leave your work on the instructor’s desk • SHOW ALL YOUR WORK VERSION 3 1. (30pts) For the circuit in the figure the switch has been at position a for a very long time. At time t = 0, the switch changes to position b . Using R = 3Ω ,L = 0 . 5 H,C = 2 25 F,V S = 12 V . (a) (10pts) Determine the differential equation for the capacitor voltage v C ( t ) , t > (b) (10pts) Determine the initial conditions v C (0+) , dv C dt (0+) (c) (10pts) Write the solution, y ( t ) ,t > 0, for the differential equation d 2...
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test4V2 - EE2120 TEST No 4 NAME(please print SSN...

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