Which option is listed under DC Generator Properties?

Which option is listed under DC Generator Properties?

• A. Produces AC voltage
• B. Converts AC to DC
• C. Load through brushes
• D. Low voltage at low RPM

Answer: (C)

DC machines deliver power to the load through brushes that contact the commutator. This arrangement is what makes the output a steady direct current: the commutator and brushes convert the alternating current induced in the armature windings into unidirectional current delivered to the external circuit. That’s why loading the external circuit through brushes is the correct property. The other statements describe aspects that aren’t defining properties of a DC generator’s output path: producing AC voltage isn’t the characteristic output for a DC generator, since the load sees DC; converting AC to DC would be the job of a rectifier, not the generator itself; and while voltage does vary with speed, saying it’s low at low RPM is a general behavior rather than a specific defining property of how the DC generator connects to the load.

DC machines deliver power to the load through brushes that contact the commutator. This arrangement is what makes the output a steady direct current: the commutator and brushes convert the alternating current induced in the armature windings into unidirectional current delivered to the external circuit. That’s why loading the external circuit through brushes is the correct property.

The other statements describe aspects that aren’t defining properties of a DC generator’s output path: producing AC voltage isn’t the characteristic output for a DC generator, since the load sees DC; converting AC to DC would be the job of a rectifier, not the generator itself; and while voltage does vary with speed, saying it’s low at low RPM is a general behavior rather than a specific defining property of how the DC generator connects to the load.