Exam2_2007_Zou

# Exam2_2007_Zou - Find 1) I(t=0); 2) Time constant( τ ),...

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ELEN 214 –EXAM # 2 Name: _________________ ID:_______________ 1. For the Op Amp circuit shown below, find 1) What is V o ? 2) What is I o ? (20pts) 1k 3k 5k 2k 1k -10V + 10V 2V 1V + - Vo Io + -

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2. In the circuit shown, the switch has been in position “a” for a long time. At t = 0 the switch moves instantaneously to position “b”. Find 1) V(t=0); 2) Time constant( τ ); 3) V(t) when t>0. (25 Points) 50V 10k 20k 1 μ F 5k 20k a b + - V(t)
3. In the circuit shown, the switch has been in position “a” for a long time. At t = 0 the switch moves instantaneously to position “b”.

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Unformatted text preview: Find 1) I(t=0); 2) Time constant( τ ), when t>0; 3) I(t) when t>0. (25 Points) 6A 10 Ω 20 Ω 1mH 50 Ω a b 50V I(t) 4. In the circuit shown, the voltage on the capacitor is 0 before the switch is closed at t = 0. Find 1) V o (t) when t>0; 2) The time when the Op Amp starts to saturate; 3) Plot V o as a function of t; 4) I o after the switch is closed for a long time; 5) I c (t) when t>0. (30 Points) 1k Ω 5k Ω-10V + 10V 5V +-Vo(t) +-1 μ F Io Ic +-Vc...
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## This note was uploaded on 04/15/2008 for the course ECEN 214 taught by Professor Su during the Spring '08 term at Texas A&M.

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Exam2_2007_Zou - Find 1) I(t=0); 2) Time constant( τ ),...

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