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A flat circular loop of with radius R lies in the xy-plane centered at the origin. Its linear charge density is
2 = A cos p.
What is the total charge on the loop?
b. Calculate the electric field in a point on the z-axis, a distance d above the origin.
Find the limit of the electric field as z gets very large compared to R (not infinitely large, E does not
become zero).
2.
C.

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