Question 60Electricity & Electronics - Assistant Engineer

The correct answer is D) They both internally generate alternating current voltages. Both AC (alternating current) and DC (direct current) generators internally produce alternating current (AC) voltages. The key difference is that AC generators deliver this AC voltage directly, while DC generators use a commutator and brushes to convert the AC to DC before delivery. The other answer choices are incorrect because: A) AC and DC generators do not necessarily produce three-phase power, B) DC generators do not rectify the current before delivery, and C) the physical size of generators is not determined solely by the type of current they produce (AC or DC).