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EE211 Quizzes

EE211 Quizzes. Spring 2000 Instructor: Dr. K.D. Donohue. Quiz 2. Find the Voltage V s and Current I s in the circuit below if each 8  load is absorbing 2 W. 8 . I s. V s. 8 . Quiz 3. Determine I L in the circuit below:. I x. I L. 2 I x. 8k . 24 mA. 16k . Quiz 4.

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EE211 Quizzes

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  1. EE211 Quizzes Spring 2000 Instructor: Dr. K.D. Donohue

  2. Quiz 2 • Find the Voltage Vs and Current Is in the circuit below if each 8 load is absorbing 2 W. 8 Is Vs 8

  3. Quiz 3 • Determine IL in the circuit below: Ix IL 2Ix 8k  24 mA 16k 

  4. Quiz 4 a) (2 points) Simplify circuit to find Vs, b) (1 point) then expand to find I1. (SHOW YOUR WORK CLEARLY) 8 k 4 k + Vs - 8 k 20 k I1 4 k 24 mA

  5. Quiz 5 A) (1.5 points) Find Vx by nodal analysis. B) (1.5 points) Find Ix by loop analysis. + Vx - 10 Ix 6 2 3 12 V

  6. Quiz 6 Find Vo in the circuit below. (Show clearly how you obtained this result for full credit!) 60 k 20 k 30 k 3V + Vo - 2V

  7. Quiz 7 Use Thevénin’s theorem to find V0 in the Circuit below: + Vx - 2  4  3 A + Vo - 3Vx 2  6 

  8. 100 Ix 4 5 20 10k 20 + Vo - 40 + Vx - 10Ix 2Vx 5 8V 10 Quiz 7.5 (Take Home) This is due Tuesday March 7, 2000 at the beginning of the class period. All students are to work independently on this. There is to be NO COLLABORATION on this work. Any detected cheating will result in an E for the course for all involved parties. You are free to use any book, notes, or computer program to solve this. If you get a result from a computer, please indicate the program used to obtain the result. Otherwise all work to obtain the result should be clearly shown. A. Derive a set of equations that completely describe all node voltages or loop currents in the circuit below (1.5 points). B. Use the set of equations to find Vo (0.5 points). C. Simulate the circuit in SPICE and determine Vo (submit printout of SPICE schematic with meter reading) (1.0 points).

  9. Quiz 8 Find a circuit that will effectively integrate the voltage vi(t) when connect to the terminals AB. Specify resistors, capacitors, and inductors, and initial conditions such that the relationship between the input and output (vo(t)) is given by: 1 k A vi(t) B

  10. Quiz 9 A)Use differential equation approach to find iL for t > 0 (2.6 points) B)Determine the time constant for this circuit for t > 0 (0.4) points iL 75 3H 15 A

  11. Quiz 10 Determine equation for vo(t) for t > 0, when subjected to input pulse shown in figure. vs(t) 10k 5k + vo(t) - vs(t) 10k .05mF

  12. Quiz 11 Find the equation for i(t), t > 0 t = 0 10 0.46mF 10 V 0.1H

  13. Quiz 12 (Take Home) (a) Use SPICE to plot io(t) for t > 0. The time axis should be long enough to show current has reached an effective steady-state. (2 points) (b) Find complete solution for io(t) for t > 0 analytically. (1 point) 1k 1k io(t) 5[u(t)-u(t-0.5)] V 0.1mF 2H

  14. Quiz 13 Find the equivalent impedance Zeq for the circuit below, if the source driving it has a radian frequency () is 100 rads/sec: 0.25 mF 20  30  Zeq  0.2H 0.5 mF

  15. Quiz 14 (Not for Credit) Find the steady-state response for vo(t), when =10k radians/s: 1 k + vo(t) - 0.1 F 0.1 H 10 k ANS:

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