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satchmo05
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Homework Statement
Find the B-field at the center of the square loop located above the xy plane, with width (w), and current I rotating counter-clockwise.
Homework Equations
Here is the given equation:
B = [(μo*I*aФ)/(4∏*ρ)](cosα2 – cosα1)
The final answer is for the B-field about the loop is:
B = [(4μo*I)/(∏*w*(√2))]az
How do I obtain this answer? I am having trouble with the angles that I am supposed to use.
The Attempt at a Solution
I used (w/2) for the radial component, ρ. I used 45 degrees for α2, and 90 degrees for cosα1, and this is obviously wrong. Which angles do I use to get the correct angle?
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