What is the structure of a DC motor?

The electric motor consists of a permanent magnet, a frame that can rotate, a collector in the form of two semi-rings and brushes connected to the poles of the source. The frame rotates in the magnetic field of a permanent magnet, striving to take a position of stable equilibrium. At the same time, the collector rotates at the moment of passing the equilibrium position, the contact of the collector with the brushes is broken. The frame continues to move by inertia, restoring contact, only the current will now be directed in the opposite direction and the frame will continue to rotate further.

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