in electric generatorhow a coil gets first energy to rotate
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When the generator first starts to turn, the small amount of remanent magnetism present in the iron core provides a magnetic field to get it started, generating a small current in the armature. This flows through the field coils, creating a larger magnetic field which generates a larger armature current.
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Explanation:
a turbine generator, a moving fluid—such as water, steam, combustion gases, or air—pushes a series of blades mounted on a shaft, which rotates the shaft connected to a generator. The generator, in turn, converts the mechanical energy to electrical energy based on the relationship between magnetism and electricity
An electric generator is a device that transforms mechanical force into electrical current through a process called electromagnetic induction. In contrast, an electric motor, made of the same components, acts in reverse where electrical current transforms into mechanical energy
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