The Coil of Wire: Provides a pathway and allow the current to flow.
Paperclip: Connects the wire to the battery, and completes the circuit.
The Magnet: Makes magnetic field that puts magnetic force on the motor loop which makes it turn.
The current flowed from the battering up the paper clip and through the wire and motor loop and back down the other paper clip. The paper clips were attached to each side of the battery, thus completing the circuit (connected positive and negative sides). The magnet located on top of the battery, created a magnetic field that put a magnetic force on the motor loop causing it to turn. The reason why we scraped the armature on one side was because we wanted current to flow while the loop was turning in one directing, for it prevented the current from flowing in both directions. The motor turns because of the magnet placed on top of the battery, creates a magnetic field. The vertical part of the loop felt the force of the magnet in opposite directions which created a torque on both ends of the wire this caused the wire to rotate. To apply the right hand rule the magnetic field (middle finger) would be in the upward direction and the force of the wire (thumb) would be towards the viewer. Since the sides of the wire are in opposite directions, the wire rotates. Once this half turn is complete the field of the electromagnet flips. The flip then causes the electromagnet to complete another half turn. The motor that we built is to small to be used to power an object. However it can be used for educational purposes and aid in further understanding in the the right hand rule.
Unfortunately there were some technical issues with my motor, meaning that I was not able to record it working. Here is a video of one of my classmates motor working. Enjoy!
Check out Cori's blog at http://coriphysics13.blogspot.com/
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