Magnetic field and Field lines
The unit of magnetic fields strength is oersted.
😀Q.. Why does a compass needle get deflected when brought near a bar magnet?
😀Q.. Why do the iron fillings arrange in such a pattern? What does this pattern demonstrate?
The magnetic exerts its influence in the region surrounding it. Therefore the iron fillings experience a force.thus exerted makes iron failings to arrange in a pattern.
The reason surrounding a magnet in which the force of the magnet can be detected, is said to have a magnetic field.
The line along which the iron filing a align themselves represent magnetic field lines.
Magnetic field is a quantity that has both direction and magnitude.
The reactive strength of the magnetic field is shown by the degree of closeness of the field lines.
The field is stronger, that is the force acting on the Pole of another magnet placed is greater where the field lines are crowded.
No two field lines are formed to cross each other. If they did, it would mean that the point of intersecting the compass needle would point two words two directions which is not possible.
The needle of a compass is a small magnet. That’s why when a compass needle is brought near a bar magnet, its magnetic field lines interact with that of the bar magnet. Hence, a compass needle gets deflected.
why the iron fillings arrange themselves in a particular pattern when sprinkled on the magnet?
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