Keep in mind that all currents flowing into a node must sum to zero In other words, the sum of all currents entering a node equals the sum of all currents leaving the node This is known as Kirchoffs current law (KCL)

a) In the circuit in Figure 2(a), find iz if i = 1.2 A. b) In the circuit in Figure 2(b), what is the value of is if ia, ip and i, are 1, 2 and 3 A, respectively? 150 N 10 3 0 iz 1.5 A( )vo 100 N :250 50 is (b) (a)