Kirchhof Law Equations for Node A and B Assignment Help

Assignment Help: >> Kirchhof Current Law - Kirchhof Law Equations for Node A and B

Q.  Write down KCL equation for node A & node B.

 

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Solution:

KCL equation

      Sum of entering currents + sum of leaving currents =0

            Now the equation of currents at node A & B by KCL

For node A

                                        -I1+I2+ 3mA = 0   //  I2 & 3mA are entering & I1  is leaving

For node B

                                  -12mA + 4mA +I1=0    //12mA & I1 are leaving & 4mA is entering

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