Emo_Jesus
- 2
- 2
- Homework Statement
- The voltage U1, U2 the current I3 and the resistors R1, R2, R3 are given.
a) Write down the equations needed to calculate U3 using Kirchhoffs Laws and Ohms Laws.
b) calculate U3 using the Network-equations
- Relevant Equations
- Kirchhoffs 1. and 2. Law, U = R*I
I tried setting up 4 equations using Kirchoffs laws, but the current source is throwing me off, as i dont know wether to include it in the loop, and if it would be smart to transform it into a voltage source.
The equations i have so far are:
I1 + I2 + I3 = I(R3)
I(R3) = I1 + I4
I4 = I2 + I3
U1 = U(R1) + U3
I(R3) being the current through R3, I2 through R2, R1 through R1, and I4 being the one going "right" at the knot under R3
Any help is highly appreciated, thank you :)
The equations i have so far are:
I1 + I2 + I3 = I(R3)
I(R3) = I1 + I4
I4 = I2 + I3
U1 = U(R1) + U3
I(R3) being the current through R3, I2 through R2, R1 through R1, and I4 being the one going "right" at the knot under R3
Any help is highly appreciated, thank you :)