Electric motors and generators
An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the
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form of torque applied on the motor's shaft.
An electric generator is a device that produces electricity through electromagnetic induction. Electromagnetic induction is the process of generating electric current with a magnetic field. Generators may produce either alternating or direct current, but they all change kinetic energy to electrical energy.
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DC_and_AC_rotating_machines.pdf
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