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Hi guys...

I was trying this question out (from alternating current) but i'm not sure whether i should do what the solution book says or listen to what my course teacher said (This is not homework, im just not clear about a line in this question...) Here goes:

'A resistive element of 30 ohms is connected in series with an inductance coil the self inductanceof which is 50 millihenrys and theohmic resistanceof which is 4.5 ohms. A voltage v=100cos377t volts is connected to the series branch........'

ok so here are my questions: That ohmic resistance which is mentioned, is that the XL? My teacher said it is :S... If it is then how? because XL= wL and that gives a different value..

And if that ohmic resistance is NOT XL, then should we just add that with the 30 ohms of the resistive element? And why is an ohmic resistance of an inductor mentioned anyways? Do all inductors have a separate ohmic resistance besides having an inductive reactance??

Im really looking forward to the reply because i've got a quiz tomorrow...

Thanks alot in advance

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# Alternating Current: Cant understand the question

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**Physics Forums | Science Articles, Homework Help, Discussion**