Principle of an Electric Motor - Science Fair Experiment


Posted March 3, 2021 by motorburner

The aim if this science fair experiment is to explain the principle of an electric motor with the help of an experiment
 
Aim:
The aim if this science fair experiment is to explain the principle of an electric motor with the help of an experiment.

Materials Required:
1. 4 to 6 magnetic discs
2. 2 Batteries of 1.5 volts each
3. 2 feet long flexible wire (insulated).
4. Tape for insulation.
5. A block of wood (dimension 2 inches*4 inches*6 inches)
6. An emery paper and a knife.

Procedure:
1. Make a small cylindrical pile from the magnetic discs.
2. Now place this cylindrical pile of magnets on the smooth wooden surface such that they can roll.
3. Now divide the big cylindrical pile of magnets into two different piles with a gap of ½ inch. This is such that the north pole of one pile faces the south pole of the other.
4. Now use the insulation tape to carefully tape the magnetic piles on the wooden board.
5. Then tape the battery on the same wooden board such that the curved surface of the cylinder faces the battery.
6. Remove the insulation from both the ends of the insulated wire with the help of the knife or the emery paper.
7. Now loop the wire through the space in between the two cylinders such that the ends of the wire touch the terminals of the battery.
8. Then make the ends of the wire touch the battery terminals. The wire loop will jump up or down.
9. If we reverse the current's direction of flow the wire jumps exactly in the opposite direction.

Scientific Explanation:

This is an experiment to shows how we convert electrical energy to mechanical energy as in case of motors. This energy conversion helps in motor to revolve. Here the contacts are fixed both with the help of commutators (a sort of sliding contact which allow the conduction of electricity but not fixed to a point. It lets the other body to move without breaking the electrical connection) we can create a sliding contact. This is because the magnetic field exerts a force on the electric field perpendicular to magnetic field and so we get a circular motion. If we reverse the poles of the magnet we will get an opposite motion of the wire as the magnetic fields are reversed.
Brushless DC Motors Manufacturers on https://www.reducermotor.net/product/electric-motor/brushless-dc-motor.html
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Issued By motorburner
Country United States
Categories Blogging
Tags electric motor
Last Updated March 3, 2021