(a) A conductor in the shape of a square loop of edge length = 0.400 m carries...

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 Fig. P30.3. 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?

(a) A conductor in the shape of a square loop