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Electric Potential for an Infinite line charge question

  • Thread starter Impoor
  • Start date
1
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1. Homework Statement
This may be simple but apparently I can't see it. When given two parallel infinite line charges, how do you change dl to dr? A book I have says that dl*\hat{r}=dr but I don't see how. Any help is greatly appreciated. Thanks!



2. Homework Equations



3. The Attempt at a Solution
1. Homework Statement



2. Homework Equations



3. The Attempt at a Solution
 

Answers and Replies

olgranpappy
Homework Helper
1,271
3
it would be easier to answer you if you explain in more detail what you mean by "dl" and "dr" and "*".
 
412
2
as olgranpappy said.. it is necessary that you provide us with the EXACT question since the title implies a single infinite line charge.. however you mention 2 infinite line charges.
 

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