Question

Which machine produce electricity

Answer 1

An electric motor converts electrical energy into mechanical energy. The reverse process of electrical generators, most electric motors operate through interacting magneticfields and current-carrying conductors to generate rotational force.
You can turn an electric motor into a generator to generate power, as this video proofs. The battery powers the first motor, it is connected mechanically to the second engine. When the first motor starts spinning, the second motor produces enough electricity to power the LED and another motor
Electricity is most often generated at a powerstation by electromechanical generators, primarily driven by heat engines fueled by combustion or nuclear fission but also by other means such as the kinetic energy of flowing water and wind.

Answer 2

generator is the machine which produce and generate electricity
hope u may get help