Find I1 and I2 in the network


Find I_1 and I_2 in the network.

Find I1 and I2 in the network

Image from: Irwin, J. David., and R. M. Nelms. Basic Engineering Circuit Analysis, Tenth Edition. N.p.: John Wiley & Sons, 2010.

Solution:

We will write Kirchhoff’s current law for nodes A and B (which were arbitrarily chosen). ¬†(Forgot¬†Kirchhoff’s current law?)

Node A:

I_1=4mA+8mA

I_1=12mA

Node B:

8mA=2mA+I_2

I_2=6mA

This question can be found in Basic Engineering Circuit Analysis, 10th edition, chapter 2, question 2.12.

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