Hw3Solutions

# Hw3Solutions - UNIVERSITY OF CALIFORNIA AT BERKELEY College...

This preview shows pages 1–2. Sign up to view the full content.

UNIVERSITY OF CALIFORNIA AT BERKELEY College of Engineering Dept. of Electrical Engineering and Computer Sciences Problem Set #3 Solutions Due Tuesday, February 14, 2006. EE 105 Spring 2006 1. a. The total negative charge (magnitude) is equal to the positive charge from the sheet charges and thus: (1000 + 1000)(10 -7 )(-2m) = 2Q Q = 200nC/cm 2 . b. Keep in mind that when an impulse function is integrated, it results in a step function about the location of the impulse function. So: Take a moment for a sanity check: while -3000nm<x<-1000nm, there is a positive charge to the left, and a net negative charge to the right; a positive test charge would go right, and hence the electric field has a positive (constant) value. At x=0nm, a positive test charge remains happy right in the middle (literally – it’s a point of stable equilibrium for a positive test charge, as the potential graph will later indicate), so E(0) had better be 0.

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