I need to find I3, I2, and I1


Attempt

-15= 10i + 20i + 4i ?

I am not sure how to go about this.

Am I suppose to use current division rule instead ?

If someone can kindly explain

 

Hello,

Take a look at this page of the Ebook:
http://www.allaboutcircuits.com/vol_1/chpt_5/3.html

It uses a voltage as source.
You can calculate the voltage by calculating the replace resistance multiplied by the current.

Bertus

 

Yeah, I got the answers. Thank you. How come voltage across a circuit is the same?
Can't it vary?

 

Hello,

You can read more about series and parallel circuits in the eBook:
http://www.allaboutcircuits.com/vol_1/chpt_5/1.html

On top there are more books, just take a look.

Bertus