ABSTRACT

R in parallel with r2 gives an equivalent resistance of

(5 × 2)/(5 + 2) = 10/ 7 = 1.429 as shown i n t he equival ent net work of Figure 32.3. From Fi gure 32.3,

current I1 = E1 (r1 + 1.429) =

8 2.429

= 3.294 A

From Fi gure 32.2,

current I2 = (

r2 R + r2

) (I1) =

( 2

5 + 2 )

(3.294)

= 0.941 A

and current I3 = ( 5

5 + 2 )

(3.294) = 2.353 A

(iii) Redraw the original network with source E1 removed and replaced by r1 only, as shown in Fi gure 32.4.