why two magnetic field lines due to bar magnet don't entersect each other
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If two field lines intersect, there would be two vector directions of magnetic force at that intersection point, which is practically impossible and is unique for every point.
Ashly27:
can u explain it further
When you put a compass needle in a magnetic field it aligns itself along a specific position at that point with respect to the field lines. Now imagine that two field lines intersect at that point, then the compass needle couldn't adjust because the point there is a common between two field lines. The compass needle needs to align along only one field line but there are two. As this is a hypothetical case, it is not possible. Hence, we assume that the field line never intersect.
thanks
You're welcome.
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if 2 magnetic lines intersect there would be 2 directions to a magnetic field line so it is not possible
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