Electrical Engineering 40 - Summer 1999 - Sylvester - Midterm 1

Electrical Engineering 40 - Summer 1999 - Sylvester - Midterm 1

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EE 40, Midterm #1, Summer 1999 EE 40, Summer 1999 Midterm #1 Professor Dennis M. Sylvester Problem #1 Node Voltages Va through Vd are labeled on the above circuit diagram. Note the location of ground. a. Circle all supernodes b. Write Vx and Iy in terms of variables Va through Vd. Vx = _________ Iy = _________ c. Perform nodal analysis for the entire circuit. You should get four simultaneous equations and four unknowns. The unknowns are Va, Vb, Vc, and Vd. Simplify these equations and fill in the blanks below. Do not solve these equations. file:///C|/Documents%20and%20Settings/Jason%20Raftery/My%20Documents/UC. ..STS/Electrical%20Engineering%2040%20-%20Summer%201999-Sylvester-MT1.htm (1 of 6)1/27/2007 5:10:31 PM
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EE 40, Midterm #1, Summer 1999 Eq 1 _______Va + _______Vb +_______Vc +_______Vd = _______ Eq 2 _______Va + _______Vb +_______Vc +_______Vd = _______ Eq 3 _______Va + _______Vb +_______Vc +_______Vd = _______ Eq 4 _______Va + _______Vb +_______Vc +_______Vd = _______ d. Find the power that the 150V voltage source releases into the circuit. P = _________
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This note was uploaded on 05/17/2009 for the course EE 40 taught by Professor Chang-hasnain during the Spring '07 term at University of California, Berkeley.

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Electrical Engineering 40 - Summer 1999 - Sylvester - Midterm 1

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