(adsbygoogle = window.adsbygoogle || []).push({}); I made a typo. I meant, Biot- Savar Law( sorry ).1. The problem statement, all variables and given/known data

A conductor in the shape of a square Loop of edge lengthl= 0.400 m carries a current I = 10.0A. Calculate the magnitude and direction of the magnetic field at the center of the square.

2. Relevant equations

db = u_0/(4pi) * I ds x r_units vector/r^2

3. The attempt at a solution

I know that that I can take out the constants, u_0/4*pi and the I and integrate ds x r_unit vector/r^2

I know also that all four sides create a magnetic field B into the page. I just don't know how to state my r. I also know that

db = k* ds sin(thetha) /R^2

( with all the constatnts factored out, k = all the constants), but I am not sure how thetha varies, i am assuming r would be l/2 if we draw our axis at the point p. but i am not sure how thetha varies.. nor ds. any help would be appreciated.

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# The Bio-Savart Law applied to a square loop

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