The original thread about making a perpetual motion machine by connecting two electric motors together was moved to trash because the whole idea and discussion was stupid. But seriously speaking, what do you get when you connect two electric motors (DC-motors) together? This is my opinion:
If you connect two motors together mechanically (ie. you connect the shafts of the motors), the result is equal to one motor with different characteristics. If you connect them electrically in series, you will have a motor that can take more voltage (it can spin faster) than either of the original motors (if they can take it mechanically), but the torque is limited to the weakest one. If you connect them (electrically) in parallel, the result is a motor that can deliver more torque than either of the original motors, but the speed is limited to the weakest one.
Motor is just another component, like capacitor, you can connect them in series or in parallel to get the characteristics you want. Connecting two motors together you wont have a generator-motor -pair. You will have one generator or one motor, depending on the application.
If you connect two motors together mechanically (ie. you connect the shafts of the motors), the result is equal to one motor with different characteristics. If you connect them electrically in series, you will have a motor that can take more voltage (it can spin faster) than either of the original motors (if they can take it mechanically), but the torque is limited to the weakest one. If you connect them (electrically) in parallel, the result is a motor that can deliver more torque than either of the original motors, but the speed is limited to the weakest one.
Motor is just another component, like capacitor, you can connect them in series or in parallel to get the characteristics you want. Connecting two motors together you wont have a generator-motor -pair. You will have one generator or one motor, depending on the application.
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