Q.5 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 the paper and on the axis of the coil) is anti-clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to *
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From right hand thumb rule, it can be shown that magnetic lines of force emerge out from face close to A, and go into the face close to B.
Factually, the magnetic fields emerge from north pole of magnet, and go into the south pole. Hence the correct answer is option A.
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