The figure shows an arrangement known as a Helmholtz coil. It consists of two circular coaxial coils, each of N = 267 turns and radius R= 20.3 cm, separated by a distance s = R. The two coils carry equal currents i = 10.9 mA in the same direction. Find the magnitude of the net magnetic field at P, midway between the coils. %3D %3D %3D

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