Magnetic lines of force of two pairs of magnets are shown in figure A and B, Out of these two figures, which one represents the correct pattern of field lines. Name the poles of magnets facing each other.
Figure B represents the correct pattern of field lines of pair of magnets. Figure A does not represent the correct pattern of field lines because field lines never cross each other.
Poles of magnets facing each other are north poles as the field lines emerge from a magnet at N-pole.