Recent content by faint545

thanks for your guidance

Alright... see attached image. Now, how do i determine if i should integrate from a to b or from b to a?

This is what I have drawn (see attachment). Is the basic idea here to integrate the electric field of the outer Gaussian surface from b to a? If so, what about the inner Gaussian surface?

My professor said to in order to solve this, integrate the electric field to find the electric potential... \Delta V = -\int\stackrel{\rightarrow}{E}dl My question is, using Gauss's Law, (\oint E_{n}dA = \frac{Q}{\epsilon}), how do I go about finding Q? Isn't Q just the charge of the shell?

So I suppose V(x) = kq(\frac{2}{\sqrt{x^{2}+a^{2}}} + \frac{1}{a-x}) if x < a and V(x) = kq(\frac{2}{\sqrt{x^{2}+a^{2}}} + \frac{1}{x-a}) if x > a. I think I can compute E_{x}(x) from here.. Thanks for all your help!

Here's what I've done in regards to your question... I hope I am on the right track... link: http://dl.dropbox.com/u/244748/2011-09-23%2018.29.26.jpg

Hi all. I'm having a very hard time understanding this portion of Physics so please bear with me. The furthest I got with this problem is deciding to use the sum of the potentials at each point to calculate the potential of the system. Something like... \frac{kq_{1}}{r_{1}} +...