Hello koi hai kya jo merse baat krega please!!! Actually mujhe neend nhi aa rhi hai!!! I don't know why?? What is a magnet?? Explain properties of bar magnets!!
Answers
ha mai jag rahi hu thodi dere baad sone jaungi
Magnets are rocks or metals that create an invisible field around themselves. This field attracts other magnets and certain metals. The presence of a magnetic field is why you can cover a metal refrigerator door with magnets. A magnetic field is concentrated around the ends of magnets. These ends are called poles.Properties of Bar Magnet
A bar magnet has properties similar to any permanent magnet.
It has a north pole and a south pole at two ends. Even if you break a bar magnet from the middle, both the pieces will still have a north pole and a south pole, no matter how many pieces you break it in.
The magnetic force of it is the strongest at the pole.
If this magnet is suspended freely in the air with a thread, it will not come to rest until the poles are aligned in a north-south position. A Mariner’s Compass uses this property to determine direction.
If two bar magnets are placed close to each other, their unlike poles will attract and like poles will repel each other.
A bar magnet will attract all ferromagnetic materials such as iron, nickel and cobalt