ABSTRACT
E1−E2= IR1+ IR2+ IR3 (Note that if current flows away from the positive terminal of a source, that source is considered by convention to be positive. Thus moving anticlockwise around the loop of Figure 15.2,E1 is positive and E2 is negative.)
Problem 1. (a) Find the unknown currents marked in Figure 15.3(a). (b) Determine the value of e.m.f. E in Figure 15.3(b).
