Governing Equations for Electrical Systems -Kirchhoff's Current Law (the node law)KCL .The sum of current flow into any node is equal to zero. i2 Current going toward a node: Current going away from a node:- i3 -i1-i2+i3+i4-i5=0 i5 4 Node Law–Kirchhoff's Current Law (the node law) KCL •The sum of current flow into any node is equal to zero. i1 i2 i3 i4 i5 Current going toward a node: + Current going away from a node:- -i1-i2+i3+i4-i5=0 Node Law Governing Equations for Electrical Systems