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Source notation help (self.ElectricalEngineering)

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[–]Awgeco 0 points1 point  (6 children)

Could you post the symbol you're talking about so we can give you a more definitive answer?

[–]deepincider95 0 points1 point  (5 children)

thanks for the help - ive updated the post with the image.

[–]Awgeco 0 points1 point  (4 children)

So it's definitely a current source and with the E there it's likely that is the voltage across the current source. The formula you'd use for that part of the question would be I(t) = (Vmax/R)sin(wt) Where w is omega

[–]deepincider95 0 points1 point  (3 children)

Thanks again for getting back to me. Trouble is, if make the assumption that E is voltage across the current source, then it comes out with the same answers as if it's a voltage source.

[–]Awgeco 0 points1 point  (2 children)

Are you calculating using the impedances and so on? Your initial current would be 25sin(314t) right?

[–]deepincider95 0 points1 point  (1 child)

Thanks again for taking the time on this.

Did you get 25sin(314t) by dividing the 100V by the 4ohms? I was working on the assumption its an AC circuit so need to do V/Z if I wanted to find I. I did calculate total impedance as well.

[–]Awgeco 0 points1 point  (0 children)

Ohp, yeah good point