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110_1_ee110_midterm

110_1_ee110_midterm - QM STAFSUDD UCLA ELECTRICAL...

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Unformatted text preview: 10/28/2008 QM. STAFSUDD UCLA ELECTRICAL ENGINEERENG 110 2008 FALL MIDTE’RM Do 4 of the 5 probiems only. Ait sources are assumed to be sinusoidai. 1. We wish to calculate the Thevonen Equivalent of the circuit in Figure 1. Terminate A and B define the output. a. Caiouiate the short circuit current. to. Gated-Fate the open circuit voltage. 6. Caicuiate the Thevonen Model. Caicuiate the impedance between the terminate A and B in Figure 2. Do a Bode ptot of the two functions in Figure 3. Piease use straight line approximations and note the values of magnitude and phase as the frequency approaches zero and infinity in aft cases- [Ptot both tog magnitude and phase.) Caicuiate an expression for the current through the resistor in Figure 4 as a function of frequency. At the resonant frequency. caiouiate the average power dissipated in the resistor. Caicuiate the impedance between the points A and B in Figure 5. Be sure to nete that both dependent and independent sources are preseat. Treat them carefuiiy. . ., H mmme f . L \ x ,7 WWWWMMWQW 317g” ‘ 4 r ...
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