- #1
Frostfire
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Homework Statement
A wire comes in from in finity (left side) and forms a shape by going up a length A, over a length A and back down a length A.(forming three sides of a square that is attached to this infinite wire), then
takes a turn and leaves the page opposite to the side it came in on, headed to infinity.
There is a particle along the horizontal axis of this, a length 1/2 A from the left or right side of the shape, what is the magnetic field at that point,
Homework Equations
The Attempt at a Solution
the answer is (sqrt 5)/5 * (Mu * I)/pi A But I have no idea how to get there