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test2 SS07

# test2 SS07 - ECE211 —— 051 Test#2 July 2 2007 Print...

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Unformatted text preview: ECE211 —— 051 Test #2 July 2, 2007 Print Name K Q wgr—————( By signing I am stating that I have taken this quiz in accordance with the NCSU honor code. Signature )axwmﬁ “:V“ : <21r f—i: ‘e‘g'za‘mL :; In: w ;- :;-< k... 1/2A 12V 2. For the circuit above, the switch has been closed for a very long time. At t = 0 the switch opens. Solve for the source current is(t) for t > 0. (~< We A -279 xi 5(07") 'd' 510‘ f/ A. . . gmxrmdnt sch,‘ -, .‘m. Wm“ “two -{. 20V 3. For the circuit above, the switch has been closed for a long time. At t = 0 the switch opens. Find 140*), diL/dt(0+), vc(0+), ch/dt(0+). 0"” KC/L Z deco» ; 3A+ JiPt = {HER Given the differential equation and initial conditions below, answer questions a through e. 2 d :+100511+2500v=5000 v(0+)=4V ﬂ(0+): -100V/s ch ch ch a. Write the characteristic equation. 62"? (005 raSOQ ’— O b. Is this circuit overdamped, underdamped, of critically damped and why? Q5156) L366) -= 0 \ room moA *’ 6" U“ c. Determine the steady state output v(oo). . '-- 500?; A VLOQ) , 6500 I 2‘ (:1. Find V(t). 7 ~Sbt "50*; watt); Rots: + Raﬁ JVL e. Determine the part of V(t) that is the transient response. r—SOE @e \/ ...
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