? Question 4 of 4
(a) [6 marks] For the circuit on the right,
determine the equivalent resistances $R_{ac}$ and $R_{ab}$.
(You must specify series-parallel combinations)
(b) [3 marks] For the circuit shown below, determine the value of $I_x$.
8?
52 V
32 V
72 ?
W
6?
8 ??
[CO3] [15 marks]
12 ??
16 ??
3$I_x$
16?
W
13?
64?
48 ??
26 ?
W
8?
Load
-39 A
(c) [6 marks] For the following circuit, if the $I$ vs. $V$ has the relationship shown, determine the value of the unknown
resistance $X$.
$I$ (Ampere)
2
1
+
2?
$V$ (Volt)
8
16
24
32
-2A
$V$
-1
$X$ ?
-3
-4
