Solving AC Generator Problem: Find Voltage Output

AI Thread Summary
The discussion revolves around a problem involving the alternating voltage of a generator, represented by the equation E = Eo sin wt, with given parameters. The user initially calculates the frequency as 109.021 Hz but struggles to determine the voltage output due to unclear wording in the question. Two interpretations are proposed: calculating the voltage at a specific time or finding the root mean square (rms) voltage. Ultimately, it is clarified that the question was indeed asking for the rms voltage, highlighting the need for clearer phrasing in such problems. The conversation emphasizes the importance of precise wording in technical questions.
fiyavan
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Hello guys

I am having a problem understanding the wording of a question, perhaps someone can help me explain it.

The alternating voltage of a generator is represented by the equation

E = Eo sin wt,

where E is in volts, Eo = 346V, w = 685 rad/s, and t is in seconds.

Find the voltage output of the source. Answer in units of V.



I've found that w = 2pif where f is the frequency of the generator, which gives me 109.021 Hz in the frequency, that was part 1 of the problem. However I can not find any formula that relate to this voltage output. I thought at first it was asking for E and to use Eo and sin 685 to get the answer but that was not the right one. What do you guys think the question is asking for?
 
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Either;

(1)The question wishes you to calculate the voltage at a defined time and the time was omitted by mistake.

(2)The question requires to to calculate the rms voltage, in which case almost all of the information is superfluous.

Is this the whole question or is there subsequent questions using the same function?
 
the question didn't give me a t to work with so I don't think it's asking for the voltage at a instant time.

but it did turn out it was just asking for rms voltage... wish the question was worded more clearly

thanx Hootenanny for your tip :smile:
 
My pleasure :smile:
 
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