Inside An Electric Motor

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Inside an Electric Motor
Sam Davis Science Specialist O.U.R. Educational
Cooperative
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An electric motor is all about magnets and
magnetism.
It uses the attracting and repelling forces of
magnets to create rotational motion
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Electrons (charged particles) move through the
coiled wire and carry electrical energy from the
battery. A magnetic field is created around the
wire, magnetizing the nail.
Energy
Electromagnet
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Simple Electrical Circuit

Closed Pathway
Power Source (Voltage)
Load (motor)
-
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Lets pop the top and look inside
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Armature a set of electromagnets.
Lets pull it out and look at it
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Brushes
Motor Shaft

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Armature
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A closer look
Commutator
Armature
Metal plates surrounding a coiled wire with
electrical energy flowing through it an
electromagnet!
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Permanent Magnets
Electromagnet
At each half-turn of the electromagnet, the
North-South poles flip and repulsion causes it to
rotate motor shaft spins!
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Source Kelvin Electronics Item 851230 Cost
1.15