Compasses
a generator
uses of u-shape magnet
A bar magnet is made from magnet materials and has a magnetic field at all times. An electromagnetic is not naturally magnet and only has a magnetic field when electricity is passed through it.
one way that ive been doing is by using the hall sensor
an magnet is a object that attracts or repel
What you have is called a magnetic base. It is used to hold things in place. It has a magnet inside. The magnet moves to the bottom of the unit and magnetically attracts the metal below it. When the magnet is moved away by the button it releases its grip.
The most common uses of an electro magnet begin with the harnessing of electricity in windmills.
Bar magnet, ball ended magnet, cylindrical magnet,horse shoe magnet, round magnet
If it has been magnetized by another magnet, then it is just a temporary magnet, but if it uses an electric current, then it is an electro-magnet.
an magnet is a object that attracts or repel
it uses electricity to create a magnet
it uses electricity to create a magnet
Compasses
To find the north pole of a magnet you can use a pole identifier. When the identifier is held to the magnet, you press a button and it will tell you if it is the north or south pole.
it uses a magnet to slow down the spin of the spool to help prevent overcast and tangles in the line. I still suggest you use your thumb to apply tension on the spool as different weight lures will make it impossible for the magnet to be sized perfectly for all application's.
a generator