- #1

Drakon25th

My question is how do i determine this if there's a second emf in the problem?

here's a picture of the problem:

picture

i tried using Kirchoff's loop law at first, first determining these two formulas:

0=E1-I1R1-I2R2

=9.0 - 22I1 - 15I2

I1 = .41 - .68I2

and

0=E2 - I2R2

= 6-15I2

I2 =.40

The problem is the second equation doesn't incorporate I3, so i cant use I3 = I2 + I1, so I'm stuck here.

Then I thought about using Ohm's law, but I am not sure how do i use E1 in terms of the parallel circuit to determine the total current going through the whole circuit. Please help me someone