write any three properties of magnetic field line
Answers
They seek the path of least resistance between opposite magnetic poles. In a single bar magnet as shown to the right, they attempt to form closed loops from pole to pole.
They never cross one another.
They all have the same strength.
Their density decreases (they spread out) when they move from an area of higher permeability to an area of lower permeability.
Their density decreases with increasing distance from the poles.
They are considered to have direction as if flowing, though no actual movement occurs.
They flow from the south pole to the north pole within a material and north pole to south pole in air.
Hey Mate..
Properties of magnetic field lines--
-The field is tangent to the magnetic field line.
-Field strength is proportional to the line density.
-Field lines cannot cross.
-Field lines are continuous loops.
Hope it helped;-)