| Inside an Electric Drill |
Many everyday jobs have been made easier by electric motors. We use electric mixers in the kitchen, electric vacuum cleaners to clean the house, electric tools in the shop, even electric motors to help start the gasoline engines in cars.
The photos below show the electric motor in a power drill. Can you see any parts which look or work like the electric motors you made in class? This motor uses a stationary coil and a moving coil so that its power comes from the interaction of two electromagnets. Do you see the gears which control how fast the drill bit moves?
end view
side view
close up view 
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