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gdaunton

Electric Potential WA #12

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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)?

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Looks like your integration is off a bit...

 

png.latex? $${V_p} =  - \int_{{r_{ref}}}   More math here, then:

 

 

 

png.latex? $$V(2m) =  - {\lambda  \over

 

From there you just substitute in your specific values for the distance from the line and the reference distance (2.5m)

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