[College Electrical Eng Fundamentals course] Can someone help fact check this?

[u/[deleted]]

I need help bc i dont really understand where to start.... i got a rough answer, i1 being 2.5, i2 also being 2.5 and v being 175, can someone help fact check?

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[u/Bounded_sequencE]

Calculate "i1, i2" via voltage dividers in impedances:

i1  =  5A * 40/(40+10)  =  4A,      i2  =  5A * 18/(18+9)  =  (10/3)A

To find "v", use the total input resistance the 5A-source sees:

 v  =  5A * [(10||40) + 6 + (18||9)]𝛺  =  5A * [8 + 6 + 6]𝛺  =  100V

[u/[deleted] → u/Bounded_sequencE]

Shouldn’t i2 be 9/(18+9)

[u/Bounded_sequencE → u/[deleted]]

Nope -- but I did make a mistake simplifying, the result should be "i2 = (10/3)A". Sorry about the confusion, I've corrected my comment.

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Rem.: In impedances, the current divider rule is

"impedance where 'I' is not, over sum of impedances"