Examlex
A natural monopoly is characterized by large fixed costs relative to variable costs.
Commutator
A device used in electric motors and generators to periodically reverse current direction between the rotor and the external circuit.
Alternators
Machines that convert mechanical energy to electrical energy by producing alternating current, commonly used in cars to charge the battery and power the electrical system when the engine is running.
Revolving-field-type
The revolving-field-type refers to a design in electrical machines, particularly alternators, where the magnetic field rotates around a stationary armature, inducing an alternating current.
Non-rotating Part
Components in machinery or devices that do not move around an axis, contrasting with rotating parts, typically providing structural support or enclosing moving parts.
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