Lecture 5

Lecture 5 - ECE 201 Lecture 5 Resistor combinations;...

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Unformatted text preview: ECE 201 Lecture 5 Resistor combinations; voltage & current division Announcements • TA schedule is posted outside EE 26. • Please put both your names and PUID, and homework number on your homework. And staple it! Revisit KCL +- Circuit element-2cos(2t) A-9cos(2t) A 3cos(2t) A cos(2t) A ? Current in: -2cos(2t) A Current out: [-9cos(2t)]+cos(2t)+ ? +3cos(2t) Apply KCL:-2cos(2t)= [-9cos(2t)]+cos(2t)+ ? +3cos(2t) Rearrange: ? = [-2cos(2t)]-[-9cos(2t)]-cos(2t)-3cos(2t) +- Circuit element 2cos(2t) A 9cos(2t) A 3cos(2t) A cos(2t) A ? Current in: 9cos(2t) A Current out: cos(2t)+ ? +3cos(2t)+2cos(2t) Apply KCL: 9cos(2t)= cos(2t)+ ? +3cos(2t)+2cos(2t) ? = 9cos(2t)-cos(2t)-3cos(2t)-2cos(2t) Revisit KVL Find V AB , V BC and V AC A B C E F G H- + 1V +- 3V +- 6V- + +- 2V 10V Set V A =0 V V E =1 V V F =-2 V V H =-8 V V C =-18 V V B =3 V V AB =V A-V B =-3V; V BC =V B-V C =21V; V AC =V A-V C =18V Example: Find v 1 , v 2 , v 3 , and v 4 Problem 2.7 Problem 2.6: find V x Find I out and V out Example: Find power absorbed or delivered...
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This note was uploaded on 02/13/2012 for the course ECE 201 taught by Professor All during the Fall '08 term at Purdue.

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Lecture 5 - ECE 201 Lecture 5 Resistor combinations;...

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