Electromagnetism : Homopolar Motor

Homopolar motor are the basics of all other motor are used now. The principle is so simple and you can make one easily. The motor is run by a battery with direct current (DC),a wire and a neodymium magnet.  Sounds fascinating right!!! So let look out about homopolar motor.

Principle of Homopolar Motor :

Homopolar motor is driven by Lorentz force. Lorentz force is a force that moving charges particles in the presence of magnetic field and electric charges (AKA Current).

When you see this image,you might be confused. But this explanation is very easy. 'ɪ' stand for Current or moving charges,'B' stand for magnetic filed and 'F' stand for force. The neodymium magnet produce magnetic field around the battery, According to Lorentz force, when the current goes through the magnetic field,it produce force. That make the wire spin around the battery. Easy right!!!.
So you now know how the motor works,so lets make one.

How to make Homopolar Motor :

Materials :
1) a AA battery
2) Neodymium magnet
3) Copper wire.

First step     :Put the neodymium magnet at the bottom of the battery.
Second step :Bend the wire into any shape.
Third step    :Point one end to the positive terminal of the batter and another end to the magnet.

Finally You made a Homopolar Motor by yourself. Why don't you make a heart shape Homopolar Motor to impress your girlfriend <3