Fig. P8.132.
6 0° V
6 0° V +
−
+
−
1Ω
4 0° A
1Ω
1Ω
2 0° A
−j1
j1 Ω
Ω –j1 Ω
I4o 0° A 12 0° V
−+
1Ω
1Ω
THE UNIVERSITY
OF LAGOS
1Ω
1Ω
+
1Ω
Vo
12 0° V
V
+−
+
−
12 0° V
DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING
−
−
−j1 Ω
1Ω
−j1 Ω
o
j1 Ω
2V
x
+
–
21 Ω
0° A
1Ω
1Ω
1Ω
EEG301: CIRCUITS
SESSION
3 0° A AND SYSTEMS 1 -2017/18
j1 Ω ACADEMIC
1Ω
TUTORIAL QUESTIONS SET V: STEADY-STATE
PHASORS & SINUSOIDS
Figure AC:
P8.149
o
Fig. P8.136.
2V
x
−
+
−
V
x
+
−j1 Ω
Io
Io
1Ω
V
1Ω
1Ω
−+
1Ω
+
2Ix
12 0° V
+ 6 0° V
−
j1 Ω
j1 Ω
1Ω
x
1Ω
1Ω
QUESTION
TWO
−
Ix
Figure P8.153
a) Evaluate the
current
symbolized
by
I
in
the
circuit
of Fig. Q2(a), using Norton’s
+ 12 0°0V
1Ω
−using either of the nodal or loop analysis methods.
theorem.
And
very
your
result
8.154
Use both
nodal analysis and loop analysis to find Io in the
Figure
P8.154
Io
network
in Fig. P8.154.
Figure P8.150
8.150 Find Vo in the circuit in Fig. P8.150.
8.155 Find Io in the network in Fig. P8.155.
8.151 Find
QUESTION
ONE the node voltages in the network in Fig. P8.151.
Figure P8.136
Figure
1Ω
a) For the circuit
of Fig.P8.132
Q1(a), determine
−j1 Ω
i.
The voltage V0 across the 2-Ohm resistor
2 0° A
Ω Fig. P8.137 using Thévenin’s
8.137 Find Vo in the network 1in
−j1 Ω
8.133
Use
Thévenin’s
theorem
find
Voload
in the
network
6 0° Vto +
2 in
0°
A
1Ω
1Ω
ii.
The
maximum
power
deliverable
to
any
that
replaces
that
−
theorem.
1Ω
1Ω
Fig. P8.133.
resistor
12 0° V
TEADY-STATE ANALYSIS
1Ω
1 Ω Io
−j1 Ω
2Ω
2 0° A
12
0° V
6 0° V
−+
1 Ω −j1 Ω
12 0° V
+−
find Vo in the network in
8.135 Use Thévenin’s theorem to find Vo in the network in
+
−
+−
+
12+0° V
Fig. P8.135.
1Ω
+
−
1Ω
+
j1
Ω
4 0° A
1Ω V x
2V x −
+ 1Ω
j1 Ω
+
j1
Ω
2 0° V
1
Ω
1Ω
1Ω
1Ω
Vo
2 0°1 AΩ
2 0° A
1Ω
−
Ix 4 0° A
−j1
Ω
V
1
Ω
1
Ω
2V
V
6
0°
A
x
x
o
−j2 Ω
2Ω −
−j1 12
Ω 0° V +
DUE ON TUESDAY, MARCH 06, 2018
−
1Ω
+
+
V
x
−
−j1 Ω
Figure P8.150
1Ω
−
Figure P8.154
+
V
o
find Vo in the network in
1Ω
Io
j1 Ω
j1 Ω
−
Figure Question 2(a).
Figure P8.155
+
8.155 Find Io in the network in Fig. P8.155.
Figure
P8.137
Ω node voltages
2Ω
the
in the
P8.151.
8.151 +Findj2
V o network in Fig.
+
b)
Repeat Find
‘2a)’ for
Fig. Q2(b)
8.156
Io circuit
in the ofnetwork
in Fig. P8.156.
1Ω
Vo
−
Figure
P8.151
2V x –
1Ω
−
6 0° V
8.138
Find
the
Thévenin’s
equivalent
for
the
network
in
−
−
Fig. P8.138 at terminals A–B.
−j1 Ω
8.152 Determine Vo in the network in Fig. P8.152.
1Ω
1Ω
Figure
P8.135
Figure
P8.133
Figure Question 1 (a)
1Ω
1Ω
−j1
Ω
2
Ω
2
0°
A
12
0°
V
6
0°
V
find Io in the network in
A
Use1(a)
Thévenin’s
findQ1(b),
Io in the
network
in for the
2Ix
+
b) Repeat8.136
for the theorem
circuit oftoFig.
but
this time,
8.134question
UseFig.
Thévenin’s
theorem
to
determine
I
in
the
circuit
in
o
P8.136.
I
−
+
+
−
j1
Ω
+
resistor through which
the current
symbolized
by
I
flows.
x
Io
1
Ω
0
1Ω
1Ω
30° V
2 0° A
−j1 Ω
Fig. P8.134.
Vx
− 4 12
0° A
1Ω
1
Ω
6 0° V
j1 Ω
1Ω
1Ω
−j1 Ω
−
2 0° A
1Ω
2 0° A
4 0° A
–j1 Ω
1Ω
1Ω
−+
+ 6 0° V
−j1 Ω
+
1
Ω
12 0° V
1
Ω
V
+
−j2
Ω
2
Ω
−
12 0° V− − x +
−+
1Ω
1Ω
−j1 Ω
j1 Ω
1Ω
1Ω
2V x
j1VΩo
+
Figure P8.155
+ 12 0° V
1Ω
2V x−+
1Ω
–
−
1Ω
Figure P8.156 BFigure Question 2(b)
−
−j2IoΩ
8.156 Find Io in the network in Fig. P8.156.
6 0° V
Figure P8.151
Figure
4 0° A
1Ω
1 Ω P8.152 1 Ω
Figure P8.138
Figure P8.136
Figure
Question
1(b) V in the network in Fig. P8.152.
8.152
Determine
o
Io
1Ω
2Ix
1Ω
4 0° A
8.137 Find Vo in the network in Fig. P8.137 using Thévenin’s
1Ω
theorem.
Figure P8.134
1 Ω 12 0° V
+− 6 0° V
c08ACSteady-StateAnalysis.indd 360 j1 Ω
1Ω
2 0° A
+
+ 12 30° V
−
1Ω
j1 Ω
Ix
1Ω
1Ω
Io
−
+
1Ω
j1 Ω
4 0° V
1Ω
2Ix
Io
1Ω
19/11/14 2:41 PM