The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. the toroid has 830 turns of large-diameter wire, each of which carries a current of 17.0 ka. (a) find the magnitude of the magnetic field inside the toroid along the inner radius. t (b) find the magnitude of the magnetic field inside the toroid along the outer radius. t