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Wind turbine [3]
How It Works
As the propeller is rotated the motor also spins. Usually when we supply power to a motor, it begins to spin. But here the motor spins and in turn electricity is being produced at the other end of the motor. When the bulb is attached to that end, electricity gets supplied to the bulb and it lights up. However the electricity produced is so small that the bulb lights up once every 10 turns. Here kinetic energy gets converted into electrical energy.