
4 Network Analysis and Synthesis
Series-connected resistors can be used as a voltage
divider as shown in Figure 1.1.
As in Figure 1.1,
I
V
=
+
By applying Ohm’s law, we get the following:
or,
VIR
V
V
RR
RVIR
11
1
122
2
=
+
×==
×
+
and
Voltage Divider Rule in Series Circuits
From the above, the voltage divider rule is expressed as follows:
R
1
1
=
+
(1.6)
Similarly,
R
2
2
=
+
(1.7)
1.5.2 Parallel Connection of Resistors
Resistors are said to be connected in parallel when the same voltage is applied across each resis-
tor. However, the current through each parallel branch will be different.
When a number of resistances are connected in parallel, their equi ...