How a Motor Works.

Motor Blog 

Parts: 

1. The Battery:  The Battery stores and provides the electric energy for the engine. 
2. Coil of Wire: The coil of wire is meant to carry the current through the motor 
3. Paperclip: Connects the battery to the wire and carries current. 
4. Magnet: THe magnet is responsible for pushing the coil of wire in circles so that it creates energy. 

The Armature 

The ends had to be scraped so that current could flow, but we scraped one fully and the other only partially. We did this so this because if there was a steady flow of current through the wire the coil would not turn all the way around but would turn backwards after one half turn.

Why the Motor turns  

First current flows from the battery up the paperclip into  the coil of wires, back down the other paperclip and back into the battery. The loop itself turned because the magnet field produced by the magnet applies a force up at the coil of wire. The loop had to be vertical so that it the force from the magnet could hit the coil vertically or else there would be no torque. This is do to the right hand rule, the electric current flowing throughout the coil give it a charge. The magnetic field, from the battery, is positioned perpendicularly from the coil and so the force from the magnetic field causes the coil to spin. 

Purpose:

The motor itself has no real practical purpose because its very fragile and doesn't produce a high amount of electricity. However it is a good example  of how a motor works. The only real application it has is to give students an example of electromagnetism. 

Link 

Heres a nice little video of my groups own motor.