In a D.C. generator all of the following could be the effects of iron losses except___________?
Correct answer: C. Increase in terminal voltage
- A. Loss of efficiency
- B. Excessive heating of core
- C. Increase in terminal voltage
- D. Rise in temperature of ventilating air
Explanation
Iron losses convert electrical energy into heat, reducing efficiency and increasing the core and ventilating-air temperature. They do not increase the generator terminal voltage, so that is the exception.
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