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Question: (a) A conductor in the shape of a square loop of edge length l = 0.400 m carries a current I = 10.0 A as in figure. Calculate the magnitude and direction of the magnetic field at the center of the square.

(b) What If? If this conductor is formed into a single circular turn and carries the same current, what is the value of the magnetic field at the center?

2292_Loop.png

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