Lecture 5

# Lecture 5 - ECE 201 Lecture 5 Resistor combinations voltage...

This preview shows pages 1–8. Sign up to view the full content.

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!

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
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

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Example: Find v 1 , v 2 , v 3 , and v 4 Problem 2.7
Problem 2.6: find V x

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Find I out and V out
Example: Find power absorbed or delivered to the two sources and three resistors 4 nodes, 6 branches and 6 elements + - 6 A 5 + - V x + - V y i x i y A B D C R 1 60 V 10 A -2 A R 2 i z 5

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern