A square loop of side 20 cm and resistance $1 \Omega$ is moved towards right with a constant speed vo. The right arm of the loop is in a uniform magnetic field of 5 T . The field is perpendicular to the plane of the loop and is going into it. The loop is connected to a network of resistors each of value $4 \Omega$. What should be the value of voso that a steady urrent of 2 mA flows in the loop?