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Hai,
Apply Source transformation theorem.The 5A and 3ohms &2 ohms are converted into single voltage source 25V ( 5A*3+2) in series with 5ohms(3+2).But the positive terminal connected to ground pin.
Similarly 2A and 4ohms are converted into single voltage source 8V( 2A*4ohm) in series with 4 ohm resistor.Now connect 15 ohms in between.
apply KVL now the V1 is -18.125V and V2 is 2.5V.
If you still feel problem i send picture tomorrow. But please try your self this, i should not tell every thing.
Sorry for my delay, I was out of hometown.
I have attached the pdf file.
One thing you have to clear, that The V1 is calculated by adding 25V and V5ohms. Now current direction is anticlockwise so look the 25Volts it is a potential drop and voltage across 5 ohms it is a potential rise.(see the polarity on each device)
so V1= -25V + 6.875V =-18.125
OR.
You can calculate in the direction of current flow.
V1=8V+(-5.5V)+(-20.625V) =-18.125
Note: Potential drop is always taken as negative in sign.
yes I have underrstand but tell me one thing that rather than to appy source transformation theorem we can do it in other way and also send me your any personal email adress because I need some more help which I think you can do fro me
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