Задача id12055

A DC electric motor with independent excitation (or with a permanent magnet) lifts the load at speed v1 using a thread wound around the motor shaft. In the absence of a load, the weightless drink rises with speed v0. At what speed 02 will the same load be lowered if a short circuit occurs in the armature circuit, as a result of which the armature winding becomes short-circuited? Neglect friction in the bearings.

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