A circular loop of wire can be used as a radio antenna. If a 22.0-cm-diameter antenna is located 3.00 {rm km}away from a 94.0-MHz source with a total power of 61.0 {rm kW}, what is the maximum emf induced in the loop? (Assume that the plane of the antenna loop is perpendicular to the direction of the radiation's magnetic field and that the source radiates uniformly in all directions.)