Two circular current loops (with radii R1 = 1.0 meter and R2 = 2.0 meter) are centered at the origin and lie flat on the xy-plane. The current in the inner loop is 1 Amp in the clockwise direction. The current in the outer loop is 2 Amp in the counter-clockwise direction. Use superposition to determine the magnetic field (both magnitude and direction) at the origin.