How to build a simple electric motor, plus how it works.
Uploaded by: dcolarusso
Video Description:
The Tabletop Explainer is an intermittent educational vlog presenting answers to viewer questions, brief science lessons, and ideas for teachers and students. It is a feature of my blog "Tilts at Windmils" which can be found at http://www.davidcolarusso.com/blog/
Tags for this video: demos electric experiments explainer motor physics science simple tabletop
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in electromagnet if there is an iron surrounded by a coil that has a current flowing in it causes the iron to become a magnet and while in electromagnetic induction the change in the magnetic field induce electricity.
so more loops of coil more electricity and magnetic field so the coil moves faster
Is it just a cirle of the same material cause if it is then what you showed is impossible.
Electrons will not move from the back direction on the down side of the circle, they will move on the same side and the forces will exterminate each other.. enlighten me plz ...
You're wrong. This doesn't necessarily have anything to do with induction or electromagnets.
It has to do with the Lorentz force that describes the force on a moving charge in a magnetic field.
More loops -> more moving charges -> more torque -> coil moves faster.
Or if you could reduce the resistance in the wires you get
faster moving charges -> more torque -> coil moves faster
Clearly, I have yet to master the procedure for commenting on youtube.