Page 127 - Basic Electrical Engineering

In the loop EA FE, current I will flow. No current from this loop will flow to
1
the other two loops. Current flowing from E to A is to be the same as the

current flowing from A to F.
The distribution of currents in loop GDAG and HDAH have been shown.

By applying KVL in these loops we write:
for loop GDAG

−2I + 4 − 8(I + I ) − I = 0
2
2
2
3
or, 11I + 8I = 4 (i)
2
3

for loop HDAH

6 − 8 (I + I ) − 3I = 0 (ii)
3
2
3
or, 8I + 11I = 6
2
3

Solving eqs. (i) and (ii)

I = 0.6 A and I = −0.07 A
2
3
Current through the 8 Ω resistor

= I + I 3
2

= −0.07 + 0.6

= 0.53A

So far, we have assumed branch currents in a network and applying KVL
written the voltage equations. From the loop equations, we have calculated

the branch currents. Two other methods, namely Maxwell’s mesh current
method and Node voltage method, are described in the following sections.

2.6 MAXWELL’S MESH CURRENT METHOD