46. As shown in the figure, a wire and a 10-Ω resistor are used to form a circuit in the shape of a square,20 cm by 20 cm. A uniform but nonsteady magnetic field is directed into the plane of the circuit. Themagnitude of the magnetic field is decreased from 1.50 T to 0.50 T in a time interval of 63 ms. Theaverage induced current and its direction through the resistor, in this time interval, are closest to