- #1
Drakon25th
Ok, the question says: "Find the magnitudes and directions of the current through the 22 ohm and 15 ohm resistors (the internal resistance of the batteries is negligible)"
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 can't 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
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 can't 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