Acircular coil (710 turns, radius = 0.065 m) is rotating in a uniform magnetic field. at t = 0 s, the normal to the coil is perpendicular to the magnetic field. at t = 0.018 s, the normal makes an angle of 45o with the field because the coil has made one-eighth of a revolution. an average emf of magnitude 0.084 v is induced in the coil. find the magnitude of the magnetic field at the location of the coil.