
clear that even sub-matrices of Q
a
and B
a
will be orthogonal to each other. In particular, Q
f
and B
f
for the same choice of a tree will be orthogonal to each other. That is, Q
f
B
f
T
0.
Using the partitioned form of both matrices, we get,
but, we know from Eqn. 17.5-3 that B
ft
T
A
t
1
A
l
. Therefore, Q
f
, A and B
f
matrices are
related by the following equations.
(17.8-2)
17.9 KIRCHHOFF’S LAWS IN FUNDAMENTAL CUT-SET FORMULATION
Kirchhoff’s Voltage Law and Kirchhoff’s Current Law equations for a network were
expressed in terms of A matrix in Sect. 17.3 and in terms of B
f
matrix in Sect. 17.6. We make
use of these representations to arrive at KCL and KVL equations ...