- #1
fatherdaly
- 8
- 0
Homework Statement
http://i.imgur.com/j3uzQ.png" to screenshot of question
Homework Equations
The "Integral Form" the question refers to is the http://upload.wikimedia.org/math/0/3/1/0311484f33c932135c09ab12ca8d1a29.png"
The Attempt at a Solution
The hint hasn't really helped me here, and I don't know what path dl should follow. Obviously it should be a rectangle of sorts but then you would have to do it line by line, meaning its not a closed loop. Also, I'm not sure how the thickness comes into it.
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