1. A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti-clockwiseand clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to
2. Which of the following is an incorrect statement about the magnetic field of a long solenoid?