Fall04_Mid2 - ENEE 204 Fall 2004 Gomez(Sections 010X...

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Unformatted text preview: ENEE 204, Fall 2004 Gomez (Sections 010X) NAME: [21%; ' i UNIVERSITY OF MARYLAND Department of Electrical and Computer Engineering Midterm 2 Thursday, Nov. 4, 2004 9:30—10:45 AM C51 1115 Instructions: Write your name on all sheets in section provided. Write legibly. Manage time wisely. Spend no more than 20 mins/problem. Closed book, closed notes. Calculators are allowed. Write all answers on the test sheet. Use back side if needed. Show all work and encircle all answers. Integrity is expected. Writing your name implicitly assumes that you will abide with the academic dishonesty code set by this school. SCORES: Problem 1. a (20 pts) b. (10 pts) Problem 2. a. (15 pts) b. (15 pts) Problem 3. ________ (20 pts) Problem 4. _______ (20 pts) Total Score (100 points) ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: Problem 1a) 20 pts. Given that the current across R2 is i1R2 = 10cos(6.28 *1031) mA. What is the source Voltage v5(t) in the form vs(t) = Acos(a)t + (15) V? K a 2'}: , 35 £7: {CM‘ffl} >j>>f¢4 ‘3 &+Cewfl7> flwfl3 v; (if) z: @422 w: (7:2; £93“? +39%) 2 «32% gwffifigéj ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 01 OX) Name: Problem 1. (2’9 a) )fl/pts. Given that the current across R2 is iR2 = lOcos(6.28 *103t) mA. What is the source voltage vs( t) in the form vs (I) = Acos(a)t + ¢) V? ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: (3 ~ {mi} fit)=10ms{10h31}v J _ Problem 1 b) 10 pts. Using symmetry arguments, find: . Jv 9 K g“ 1R3(t) = 5% 1mm - fl mm = E 1R6(t) =.___§;§:____ 1cm =M aye/f? ma) = __?_}__ a; “‘1 1a): @fiigfij =1 i§w3 (59%) f??? % (total current produced by source) ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: ProblemZ. . , ’5: 24$ 4» $3 RL ”‘1'” Ci ”“1 Bil-{IMF ' xvii—J a. (15 pts) Using superposition method, find the Thevenin equivalent circuit on the terminals of the load resistor. Draw the Thevenin circuit with values. ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: Problem 2. b. (15 pts) Using superposition method, find the Norton equivalent circuit on the terminals I -"’"¥""»““*"“~ of the load resistor. Draw the I 2mH , I . . . ““32: Norton Circuit With values. or 440006?’ mi» i i Btflfiwfiiwwé V32=t€§simjifififit§ ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: Problem 3. 20 pts. Use NODAL analysis to calculate the voltages on all the nodes AND across the 4k resistor. «L. 4,“; +i—a as; Eta. 3%. ENEE 204, Fall 2004 Midterm 2 Gomez (Sections 010X) Name: Problem 4. 20 points. Given the circuit, use Mesh analysis to find the currents AND the current on the 4k resistor. .W L 34; «21% >0 3%? 37%” e3? W23; $é3333m? ,2: gijtéggefi ...
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