Yes. It's useful because when it's free to spin, it aligns itself with the Earth's magnetic field.
with a compasss
You need to rub the needle with a magnet or you can use coil around the needle and pass current to make it a electro magnet.
When one end of the unmagnetized needle is in contact with a magnet, the magnetic field from the magnet induces magnetism in the needle. This results in the end of the needle touching the magnet becoming a magnetic pole, and the other end becoming an opposite pole. The opposite poles attract each other, causing the unmagnetized needle to attract another needle when in contact with a magnet.
Rubbing a needle on a magnet will align the domains within the needle in the same direction as the magnetic field of the magnet. This causes the needle to become magnetized and exhibit magnetic properties itself.
The needle that was stroked by the magnet will become magnetized and attract the other needle. The unmagnetized needle will not be affected, so it will not attract the other needle.
Yes, a needle is attracted to a magnet because it is made of a ferromagnetic material, which interacts with the magnetic field of the magnet. This attraction causes the needle to align with the magnetic field lines of the magnet.
compasss
The needle goes to the magnet because of the pull!!!
Yes, it is a permanent magnet.
A compass needle.
The compass needle.
A needle magnet is a type of small, strong magnet that is shaped like a needle. It is commonly used for picking up small metallic objects like pins, needles, or screws that are hard to reach or see. Needle magnets are also used in compasses to indicate direction.