gdaunton Posted February 11, 2014 Posted February 11, 2014 Hello, I got to this question and was not sure how to go about it. I sorta had an idea but that was for the line charge of a fixed length, so do I just ignore the lengths and assume that E= lamda/(4 pi e0) and then use V=int(E*dl)? 1 Quote
0 FizziksGuy Posted February 12, 2014 Posted February 12, 2014 Good strategy, but the electric field due to a line of charge isn't lambda/(4 pi e0). Use Gauss's law to derive it. It's in your notes, in the Gauss's Law video, and also in the course guides. Quote
0 gdaunton Posted February 12, 2014 Author Posted February 12, 2014 So I should get (-lamda*r)/(2*pi*e0)+c for the electric potential right? Quote
0 FizziksGuy Posted February 12, 2014 Posted February 12, 2014 Looks like your integration is off a bit... More math here, then: From there you just substitute in your specific values for the distance from the line and the reference distance (2.5m) Quote
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gdaunton
Hello,
I got to this question and was not sure how to go about it. I sorta had an idea but that was for the line charge of a fixed length, so do I just ignore the lengths and assume that E= lamda/(4 pi e0) and then use V=int(E*dl)?
3 answers to this question
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