A cube has two rings on opposite faces of the cube. The rings carry equal currents i. The rings are sized such that their diameters are equal the side length of the cube s. What is the field strength in the center of the cube if the currents run such that the field strength is as big as possible? Start with a derivation of B from a ring. Please include a diagram for the problem.

A cube has two rings on opposite faces of the cube. The rings carry equal currents i. The rings are sized such that their diameters are equal the side length of the cube s. What is the field strength in the center of the cube if the currents run such that the field strength is as big as possible? Start with a derivation of B from a ring. Please include a diagram for the problem.

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