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luxmundi
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Homework Statement
A current is in a straight conductor of length a.
a. Show that the magnitude of the magnetic field at point P is B=√2μ0i/8pia .
b. Use the result of part a. to find the magnetic field at point P in the current loop below
(magnitude and direction).
http://postimg.org/image/toaspcmfl/
[url=http://postimg.org/image/toaspcmfl/][img=http://s16.postimg.org/toaspcmfl/Untitled.jpg][/url]
Homework Equations
B=√2μ0i/8pia
The Attempt at a Solution
I have part a, its just that I am having trouble going about part b, any help?