AC Electrics
Hey guys, I could use some input on this one.
If an alternator is run at below normal frequency, then:
A) Electric motors will stop.
B) Inductive devices will overheat.
C) Lights will become dim.
D) Lights will become brighter.
The correct(?) answer is B. I agree that if the frequency is below normal, that would mean that the inductive reactance is lower and thus the current will be higher, but conversely, a lower frequency would also mean that capacative reactance would be higher, thus giving a lower current, which should balance the lower inductive reactance, as there is no mention of one reactance being more dominant than the other, or any one kind of reactance at all for that matter, other than what might possibly be deducted when the answer alternatives are examined. Am I to assume that the other alternatives, being placed in a purely capacative reactant circuit couldn't occur in the case of decreased frequency?
-Anders