Explanation: A DC generator is equivalent to an AC machine plus a mechanical rectifier, i.e, commutator. 10. In a DC motor, the commutator serves as a ___________
A. mechanical rectifier for alternating EMF to direct EMF
B. mechanical inverter to invert the direct applied voltage to alternating voltage
C. any of the mentioned
D. none of the mentioned
Answer:A
Explanation: A DC generator is equivalent to an AC machine plus a mechanical rectifier, i.e, commutator. 10. In a DC motor, the commutator serves as a ___________
A. mechanical rectifier for alternating EMF to direct EMF B. mechanical inverter to invert the direct applied voltage to alternating voltage C. any of the mentioned D. none of the mentioned
Explanation: A DC motor is equivalent to an AC machine plus a mechanical inverter, i.e, commutator. Sanfoundry Global Education & Learning Series – Electrical Machines.