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by: Jalon Wolff


Jalon Wolff
U of L
GPA 3.92


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Class Notes
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This 5 page Class Notes was uploaded by Jalon Wolff on Friday October 23, 2015. The Class Notes belongs to ECE220 at University of Louisville taught by Staff in Fall. Since its upload, it has received 15 views. For similar materials see /class/228338/ece220-university-of-louisville in ELECTRICAL AND COMPUTER ENGINEERING at University of Louisville.

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Date Created: 10/23/15
ECE 220 NETWORK ANALYSIS I FINAL 098 265 Points Name You may use one sheet of notes and your calculator Fill in the blanks circle the correct answer etc 1 20 309 Find the resistance between A and B The A 6L 1 l gg answer is an integer ISZ 2380 727 Qv W b 5 510 2 5 If there are 22 essential nodes in a network you need KCL equations 3 5 A circuit with 17 meshes requires KVL equations 4 10 KO L 50 wmnzt 393 L V MN MFT 30V 6 10 50 V loV UL CJL 9J1 7 20 A black box with 2 leads sticking out of it is known to contain only DC sources and resistors The short circuit current is found to be 6A The current through a 109 resistor is found to be 4A Sketch the Thevenin equivalent circuit for the black box 8 5 A certain device stores 180000 J of energy How much is that in KwHrs 9 5 The voltage across an cannot be changed instantaneously 10 20 A 3phase deltaconnected generator is connected to a balanced Y connected load Each phase of the generator has a voltage of 200V Each phase of the load has an impedance of 15 j 18Q Find the total power consumed by the load 11 20 The switch is closed at t0 0 Find Vt for t gt 0 NJ 305 9391quotquot 39 5MF7120 l m 12 40 i 100 cos 40t 20 A Imax 1min Iavg Ipcak to peak NW7 8 HEH II II A 02 If this current were to ow through a 59 resistor the average power consumed would 13 20 9 00quotquot H Find Vt Assume that the voltage across the capacitor is zero at t O Simplify your answer 2on 14 W r r L isideal 4 39 Dis6V 39 kg 20 kg 30 kQ50 kg 80 kg 100 kg Capacitors available 1pF5 pF 10 pF 9V 15 20 A motor connected to a 220 V 1ine consumes 40 KVA with apowerfactor of 062 lagging A 20 KVAR capacitor is also connected across the line Findthe cunent in the line feeding the two devices 16 15 Find 7so that the J 90 2 maximum pgwer is consumed in Z NL QSEOO N J30 17 15 Find V


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