Download Nodal and Loop Analysis and more Exercises Electronic Circuits Design in PDF only on Docsity! Chapter Three: Nodal and Loop Analysis Techniques Chapter Three: Nodal and Loop Analysis Techniques 163 166 Irwin, Basic Engineering Circuit Analysis, 8/E
3.3 Use nodal analysis to find both V, and V, in the circuit in
Fig, P3.3, PSV
2mA
Vy Y>
VV VAN oO
6kO 2ko +
12 mA Ct) 3kO 6 kQO 1kO Vo
O
Figure P3.3
SOLUTION:
3°30 Find Vy tV, by hodal.
@\,: 43,-Ty, ev 4 Vee =o
T, e aad
ee oo \ ON, Ten 4 VaVey Vang YarMe o
au “FT No BL Ry Ry -
7 ©r,: Vaste Ve
= ok a bee Rye 2bie 2, OE
Ree l\kn ays lama Dae2nd ~ =
No? 241M V\= 224¥
Chapter Three: Nodal and Loop Analysis Techniques 167 SOLUTION: Continued on the next page. 168 Irwin, Basic Engineering Circuit Analysis, 8/E
3_4.txt
MATLAB WORK
Factor 1/24000 out of conductance matrix.
EDU= g=(12,-6;-6,18]
g =
12 -6
-6 18
EDU» i=[-0.002;0.006
i=
-0.0020
0.0060
EDU» 24000*inw(g)*i
ans =
oo
Chapter Three: Nodal and Loop Analysis Techniques 171
3.7 Find V, in the network in Fig. P3.7 using nodal analysis.
cs
12V
Figure P3.7
SOLUTION:
3.7 Finel Vo by nodal
172
Irwin, Basic Engineering Circuit Analysis, 8/E
3.8 Find V, in the circuit in Fig. P3.8 using nodal analysis.
PSV
8mA
Figure P3.8
SOLUTION:
3.3 Find Vo by nodah
Mi Vi
Me Fm
Reber Ras 2k Res dhe
Chapter Three: Nodal and Loop Analysis Techniques 173
3.9 Use nodal analysis to find V, in the circuit in Fig. P3.9.
4kO
WA WA WY
2kO 7 VAT 8 ko
6V © 4ko 8k Ct) 2mA
Figure P3.9
SOLUTION:
34 Find We by vigdal.
v= 6V
Va
Yate ie vs V4
yi i -] Qo: Wey Va, Vals
a ei yh Dens wtet Re
|
@ Va: VarVa WVU 2g
(= Zea B= By dk, Ry Ry Ry
Pye Pea Fin @ Vyr VarVs © 2x03
+
and Voz Va “Ng
Vs 5AV, Vy= Bay Ve= 3.6v |
176 Irwin, Basic Engineering Circuit Analysis, 8/E
3_1l.txt
MATLAB WORK
Factor out 1/12000 from the conductance matrix
EDU» g=[12000,0,0;-3,7,-3;0,-3,4]
g=
12000 0 0
-3 7 +3
0 -3 4
EDU» i=[6;-0.002;0]
i=
6.0000
-0. 0020
EDU» v=12000*inv(g) *i
ve
6.0000
-1.2632
-0.9474
Chapter Three: Nodal and Loop Analysis Techniques
177
3.12 Use nodal analysis to find V, in the circuit in Fig. P3.12.
VW‘ VN O
2kQ, 6 kO +
3kO
5V oe) Vo
6 mA 6V
O
Figure P3.12
SOLUTION:
3.1Z Vo by hodal,
Vi Py Vy te Wyes¥o a Vg2-bV
A eA
+ @\;: Vo-\, p Vato _ bxuoteo
= pg, e, a
V.
5 Bonk INS @\g: VoN2 4 Ve-Ns og
6év _ ey 3
1___t—_i_.
—
Rezka Ri =bke B- 3kq
[ Yer 0.27]
178
Irwin, Basic Engineering Circuit Analysis, 8/E
3.13 Use nodal analysis to find V, in the circuit in Fig. P3.13.
VN VN
6 kO 4kO
8kO
12V G ©) 24V
4kO Vo
Figure P3.13
SOLUTION:
3.1.3 Fina V, by Hoda.
Vp = clay Vs =+z4v
Vi Boy, be V5 ' :
@Va: Var V0 V3 . VarVe
ia ee R-s
oy(E 2ay
{2 @Ny: Vo-V2 . Yo
ey ey
he
Chapter Three: Nodal and Loop Analysis Techniques
181
3.16 Find /, in the network in Fig. P3.16
1,
VN
4kO, 3kO
$6 KO 2mA 6V S2k0
Figure P3.16
SOLUTION:
SMe Fina a)
Vis -\2vV Na =6V
Mi va Es 5 SS QV: Mooveve at
en
5 ev Mev Ry
__ 0 4 aud W,- Va-V3
ov Es
fye bka Peed Bye 3k byezka
EsiezmA
182 Irwin, Basic Engineering Circuit Analysis, 8/E
3.17 Use nodal analysis to find V, and Y, in the circuit in
Fig. P3.17.
R= 1320
Figure P3.17
SOLUTION:
3.10) Find Vy and Vy by ned al
Qs za Bee Zeya
hse Wn Ry = ee.
Reston Qe Ie
Chapter Three: Nodal and Loop Analysis Techniques 183
3.18 For the network in Fig P3.17, explain why the resistor R
plays no role in determining V, and Y,.
SOLUTION:
3.8 Os shew ih Ho Simple cireuwt
here the A Currek sauree
fixes Yo Carlet in ib branch,
Vhdep ended of He Valu od
Sine Va ey depend. onl (re Lee branch's eyerenhy
Ho yeh of BR does nok impack Vy or Vy
186
Irwin, Basic Engineering Circuit Analysis, 8/E
3.21 Find 7, in the circuit in Fig. P3.21.
VY VW
4kO 4kQ
2kO
24V CG) Io $ 2kO
6V
Figure P3.21
SOLUTION:
3.21 Find a,
Vi=Z24V
YaoM Vac + 2 =
Ry BB Py
G > Va-6
Chapter Three: Nodal and Loop Analysis Techniques 187
3.22 Use nodal analysis to find J, and J; in the circuit in
Fig, P3.22.
I,
WA Ws WA
3 kO 3 kO 2kO
1kO $ 6V 2mA $ 4kO
Is
Figure P3.22
SOLUTION:
3200 Find Do and T by bo dal
Bis looa + 30a = 40en 0.
tn bev bs S Da ae B= 2oooedo00 = GER
- -\ -3
xr, -fv, - Ee = V
Los = “0 Jha “= + 2x1o A.
[z= [== =~ 0.u7mA ts= “MQ = Tse 0. 83rmA
a Ry _
188 Irwin, Basic Engineering Circuit Analysis, 8/E
3.23 Use nodal analysis to find V, in the network in
Fig. P3.23.
3mA
VY C) VV O
Aka 2kO +
2kaS Vv 6 ko 1kO Vy
O
Figure P3.23
SOLUTION:
3.23 Find No by vo dal,
Ts=Me LM
Ey Pah ty
+
Ve vee vy (Bs \
~ \ Be tity /
Chapter Three: Nodal and Loop Analysis Techniques
191
3.26 Use nodal analysis to find /, in the network in
Fig. P3.26.
>) WW Wh
1kO 2kO
6V
2ka $ 2ka 4mA $ 2k
T5
Figure P3.26
SOLUTION:
Ni ioN2 = 6
Rs @,- Rye ky =2ka
Raalken Is
Alaa
‘ Vee ;
@Ns aM Ne
Ry Pas Be
@ ref: My V2 4 M3
= 1.
Ry h By tle s
and Dy = Ve / Ry
x,
Se Bay)
192 Irwin, Basic Engineering Circuit Analysis, 8/E
3.27 Use nodal analysis to find V, in the network in
Fig. P3.27. Then solve this problem using MATLAB and
compare your answers. ©S
Oo
+
Vo
oO
Figure P3.27
SOLUTION:
3.27 Find Vy by Wodeh ana MmrnTLMe
Vq-V,2 12M
at Vet Va-Na , VenMi L Ts
Ry Re
Orel Mi Ve Lats
nn
R= R= BR, <iq: \We
vo [ye- 2 |
Chapter Three: Nodal and Loop Analysis Techniques 193
3.28 Find V, in the circuit in Fig. P3.28 using nodal analysis.
PSV
1ko 1kO
$ VA VN O
+
1kQ $ 12V 2kQ Vo
O
Figure P3.28
SOLUTION:
328 Find Vo ‘oy Vie dad
Vo-Vy=6V Vas \2Nv
4 Vere 4 Ve Lg
Bs Ry
Vos | 0-3N
Qek= Bg zien Ryan
196
Irwin, Basic Engineering Circuit Analysis, 8/E
3.31 Use nodal analysis to find V, in the circuit in Fig. P3.31.
“@
Figure P3.31
SOLUTION:
3.31 Find Ve by ho deh,
Viz 120
@Va Van Me + Va + Va “3 =0
EY coe es
Vv. -V
@ 3 Va oF an thta
3
No = V2-Vs
Voz dav
Chapter Three: Nodal and Loop Analysis Techniques 197
3.32 Find Y, in the network in Fig. P3.32 using nodal analysis.
cs
VV VV VV oO
4kO 4kO, 2 kD +
6V CG 2mA 4mA 2kO Vo
O
Figure P3.32
SOLUTION:
3.92, Fina Vy ly ho dal.
Vi ebv
@v wy ve ge
Ry e, SA o
@ Vy: Vy-\e + Va7Vo =Ty
Ppa Br rsdken R= Ry = 2a
Dsus armiy tye Ima R53
198 Irwin, Basic Engineering Circuit Analysis, 8/E
3.33 Use nodal analysis to find V, in the network in
Fig. P3.33.
1kO
O
+
Vo
O
Figure P3.33
SOLUTION:
3.33 Find V, by he dal
Va =l2V
ViNa pay Va-¥on 5
Ry Bs
Vi: Tye VeV | VAN, ye V2
“Be Ry
@ V+ Veh Vee Ves ig
Chapter Three: Nodal and Loop Analysis Techniques 201 SOLUTION: Continued on the next page. 202 Irwin, Basic Engineering Circuit Analysis, 8/E
MATLAB WORK
Factor 1/1000 out of the conductance matrix.
EDU» q=[0,1000,0,0;1.5,-1,0,-0.5;0,-1,1.5,0;-0.5,0,0,1.5]
g=
1.0e+003 *
Q 1.0000 0 o
0.0015 -0.0010 0 -0.0005
0 -0.0010 0.0015 0
-0.0005 QO 0 0.0015
EDU» i=[12;0.002;-0.006;0.004]
is
12.0000
0.0020
-0.0060
0.0040
EDU» v=l000*inv(g) *i
v=
11.5000
12.0000
4.0000
6.5000
Chapter Three: Nodal and Loop Analysis Techniques 203
3.37 Determine V, in the network in Fig. P3.37 using nodal
analysis.
2kOD $ 1kQO
6V
t (>) °
2k Ss 1k Vo
oO
Figure P3.37
SOLUTION:
3.37 Fryd Vp oy nodal.
Vi-Va = Gy vio-Nes bey
BHR 2k Tsy= 4m
Rs = Py kes tka
206 Irwin, Basic Engineering Circuit Analysis, 8/E
3.40 Use nodal analysis to find V, in the circuit in Fig. P3.40.
2kO s 6V
4mA
2ka 3 1ko
Figure P3.40
SOLUTION:
240 Fra uy by vn oka
Fis@, = 2k
Ts Pee Roe e kh = lee
Xe del
Ay. = 2m
Vos LS7V
Chapter Three: Nodal and Loop Analysis Techniques 207
3.41 Determine V, in the network in Fig. P3.41.
Figure P3.41
SOLUTION:
B41 Find Vy
KYL G12 42 ANAS EO
V, = © axto®) (re) = -4y
Vo: BY
208 Irwin, Basic Engineering Circuit Analysis, 8/E
3.42 Find V, in the circuit in Fig. P3.42.
4mA
1kO
Figure P3.42
SOLUTION:
3.42, Fina Vv,
Qi etelk
(leat o\ Creed Nas no e fleck m Vol
kve- 4-12+ Th, 47,282,506
To= 4m
wee [a]
Chapter Three: Nodal and Loop Analysis Techniques 211
3.45 Find V, in the circuit in Fig. P3.45 using nodal analysis.
“4-8
1kO +4
12V
Vv
2 1kO 2kO Vo
O
Figure P3.45
SOLUTION:
34S Find Vy by nodal.
— Vi -Vy = 12V V2> Vo
_ WL see arnete: Vive, Mig Ve co
qe, te Ry
212 Irwin, Basic Engineering Circuit Analysis, 8/E
3.46 Find V, in the circuit in Fig. P3.46 using nodal analysis.
Then solve the problem using MATLAB and compare
your answers, ©S
> ww O
Y 1kO +
12V
al <> 1kO 1kO 1kO V,
Ky =
O
Figure P3.46
SOLUTION:
a4 Find Vy by Kodeh £ wATLAB
VieVg 212
@ Vy: Voi Veo
= =o
AU R= Ilha @ ref: 25+ Yo Me 26
Ry Ru Ry
Ty = Vi fee
[easy]
Chapter Three: Nodal and Loop Analysis Techniques 213
3.47 Find J, in the network in Fig. P3.47, PSV
Ww <>
2 kO
4000/,
2k S 4kO 12k qd) 12mA
I, I,
Figure P3.47
SOLUTION:
347 Find X.
lara Moy
216 Irwin, Basic Engineering Circuit Analysis, 8/E
3.50 Find V, in the circuit in Fig. P3.50. PSV
Figure P3.50
SOLUTION:
3.fa Find Vp
Nodal Porakans 15! Zio 2 = VicNe t Vy
_ : es Eytee,
Ve Veaap. Dirowiar
aN x a Vv oo‘ + Vo
xe vif 4. | Loon Rs “Ey
L Byrke
< |
Vue i /2 aa
Chapter Three: Nodal and Loop Analysis Techniques 217
3.51 Use nodal analysis to find V, in the circuit in Fig. P3.51.
In addition, find all branch currents and check your
answers using KCL at every node.
AAA aN AN Oo
12kO NZ 2ko +
2000/ ,
6V G) 4ko 2mA 4kO Vo
I. -
O
Figure P3.51
SOLUTION:
3.51 hse nodal Aalysis to find Vo dclech via KEL.
Beek BL =4kan
Ll, =2hk2 Ree AL
Vy -GN Na -Ng = + Zo00T,, Ty = 2 Pe
Va sNo . Vs Nai 4 V2 4 vy Ye 2 2xto™*
Rs By & Re es
T= Tt pk Fys O43. © = - 136th Tz 643,A
@ V2 Tjtht+ -o? Wie+ L43 -|3S7=0 “
@v Tr + 2xip Aer ~1357 4 2000 = 643
3 3 v
@ wef: E, +Ty +, = 2x0? TNL+INS 4443 -2000 -0
218 Irwin, Basic Engineering Circuit Analysis, 8/E
3.52 Find the power supplied by the 2-A current source in the
network in Fig. P3.52 using nodal analysis.
10V 40 2l, 50 @ 2A
Figure P3.52
SOLUTION:
352 Find an ‘oy Vodak Analysts.
Vis tov
Ty VMs
4
Poa (Q0(\2) => Sw Supp lice
EK -Sodote absorbe SW
Chapter Three: Nodal and Loop Analysis Techniques 221
3.55 Calculate V, in the circuit in Fig. P3.55 using nodal analysis.
+
2k = Vy
+ oO
+
12V eS Vo
O
Figure P3.55
SOLUTION:
3.35
Fina Ve by Vedat anaheysis.
ey =R,= 2k2
Ce aky> Re = VED
Vx eNig-No
Ny = (2N
ay
Va = -2Vxe
Ne,
at Vy 3 =0
ad- Ng NarVo 4 2xlo = Vo
Fa Es
222 Irwin, Basic Engineering Circuit Analysis, 8/E
3.56 Using nodal analysis, find V, in the network in Fig. P3.56.
1kOS
1kQ
4 VV o
1kO +
2V, o> 2kQ Vy
oO
Figure P3.56
SOLUTION:
3.5% FindWVe oy wadal analy sis.
4 Sopsrmeldl: Me gp Map VorNe 4 Vaowy 4 ate”
Pe Ry Ry Es
=6
Chapter Three: Nodal and Loop Analysis Techniques 223
3.57 Use nodal analysis to find V, in the circuit in Fig. P3.57.
1 Koa S 1kO 1kO 1 kO
XK 12V
<4 Oo °
NZ 4 2ko +
amA Ch) 2k 2KN SV, 1kQ Vo
O
Figure P3.57
SOLUTION:
3.57 Find vy bom Ho dah ancy sis.
Ms f= B= Py= Fy My =len
Be = Rew kye2ee
Vy-V3 = 1
V3 - Na= 2Ny
Vinay
Irwin, Basic Engineering Circuit Analysis, 8/E 226 Continued on the next page. SOLUTION: Chapter Three: Nodal and Loop Analysis Techniques 227
c)
Ng, = Va
Veg *¥g-Na
Ma Me Mery | Maes =
Bo Rs Bu Re
228
Irwin, Basic Engineering Circuit Analysis, 8/E
3.61 In the circuit in Fig. P3.61, use Gaussian elimination to
determine V,,.
(a) Would mesh or nodal analysis be the most efficient
approach? Why?
(b) If mesh analysis is used, are any supermeshes
required? Write the mesh equations. If nodal analy-
sis is used, are any supernodes required’? If so, how
many? What is the best location for the reference
node and why? Write the node equations.
Figure P3.61
SOLUTION:
Zt Eyad wy
a)
BY
reskh m- nodal
4 wtoheo | 3 mon - ref Yodlta 2 uabkmnaye Sou cee = No pak
Ne sepemeshts Argutud becane dere ae me cored
Suu. Go
Ne Seprrede au herded becaun He 2 welkage Sorrcee
Comme att ty 3 dhe “odes » Aaaarivg doe Ath node
free for epptrcatim wp kee.
Book tocchm fer MH nad at bette od schemahe.
Mt nahh
Cc
Chapter Three: Nodal and Loop Analysis Techniques 231
3.64 Use mesh analysis to find V, in the circuit in Fig. P3.64.
4kQ 4kO
VN VAN O
+
6 kO
2 Kas 2kO V,
12V
O
Figure P3.64
SOLUTION:
232 Irwin, Basic Engineering Circuit Analysis, 8/E
BUG Uae mesh b fad Ve
mt Qr4ba Pye zkk bye tk
z = Ry an ‘, Rex 4kn Re-2kn
Q, @rv Ty Ve = Take
Tif, +2, 2 +0, aR, +lz-0
Ty by Dake + @-T)\ es aie
T= ota mA Vo = 1 33V
Chapter Three: Nodal and Loop Analysis Techniques 233
3.65 Use mesh analysis to find V, in the circuit in Fig. P3.65.
4kO 10 ko
vA‘ WN Oo
+
6 kO
8 Kas 2kQ Vo
6V
O
Figure P3.65
SOLUTION:
R=ter Re= sham tg etl
Rye deka gee Zk
Vo > Fo bs-
Tye +Tye, +O -TNRy eG
Taeyt Tater .-Ty E,=-&
Ty - 250.8 [Voz os]
236 Irwin, Basic Engineering Circuit Analysis, 8/E
3.68 Use loop analysis to find V, in the network in Fig. P3.68.
PSV
vw Ws S O
2kO 2kO +
12V
$1 kO 2mA 1kO Vo
O
Figure P3.68
SOLUTION:
3.48 th v, voiny ang anlar
ie ae Ria Pa= the Pann eka
lev +
g an. zmh Ax, ay Ne Vor Ty 4
T,-T, = 2m r,?, +t, 0 +2, 2, + Ty, @ = 12
T2= Ima Voz iv
Chapter Three: Nodal and Loop Analysis Techniques 237
3.69 Find /, in the network in Fig. P3.69 using mesh analysis.
cs
I,
WV
4kQ
2ko
2mA qd) 6k Cd) 4mA
12V
Figure P3.69
SOLUTION:
3.64 Uae mech analunis to find
anal Fa 2kn = 4k bye ck
T+t2
2mh dim A
Eye -2mA
Ts -4mA
(= GT +18, -)e3 + Ty= 2.7m A
[x- 2-bImA
Irwin, Basic Engineering Circuit Analysis, 8/E
238
3.70 Use both nodal analysis and mesh analysis to find /, in
the circuit in Fig. P3.70.
®
3
>
0
2mA D> 2kQ
f,
oO
S 4k
Figure P3.70
SOLUTION:
er nro dak frm & fio a
3.92
Gm
Bie dian
Tes f2-Ts
Is = ZmA
Ea = 2-67mA
[Tos —o.n2ma
Neb + Va, = 2x00
= 2k Rs adh
No tat
Vg-Ne = 12
3 -3
xo "4+ 2eto “4+ V2-M =O
Fy
3
Chapter Three: Nodal and Loop Analysis Techniques 241
3.72 Find V, in the network in Fig. P3.72 using both mesh
and nodal analysis. PSV
O
+
2mA > 2k
4kQ Vo
12V CG 2kQ
oO
Figure P3.72
SOLUTION:
SIL Fink ye woing, Wooly fire dak.
A
Ry = Aber
v
No
wav
Mme No £
T,= 2m Vi = l2V
\2= @,-T,) 2, + @,-)*ts Zutons Ven Ve | Ve
Pe Pa
o= @3-F) Par C-Tee rs hy
+ VMieve p ONR ag
Ey es
Mo = Eats
Fas 1. 7l ma [Mv ~ a
[ee]
242 Irwin, Basic Engineering Circuit Analysis, 8/E
3.73 Use loop analysis to find /, in the network in Fig. P3.73.
cs
42V +) 1kO qd 2mA
Figure P3.73
SOLUTION:
3.73 Use Lecy td fran Z.
Que es = Vien
Tn= 2@eA
Ty-F3 = 4mA
to Tye-Ty
fas 2, e+ B27, -ry + 2g Ox, -r3\
oO Te? +R (o,-0,) + ty (4-H) RA
Dy = 3.64mA | Fe I Ltmal
Chapter Three: Nodal and Loop Analysis Techniques 243
3.74 Find J, in the circuit in Fig. P3.74. ©S
Lo
ev 2kO S 4k
2mA 2 kO
>
q ~ J 4
XY
6ka S 41mA S 2k
Figure P3.74
SOLUTION:
@\ Bo = Bye 2k
Kardler B,sten
Ey -Xy= 2m
Ty-Ty=\mA
Te, + ©, -Ty) Ay +(G-2) Qso
Ge TLR, +Tqks + T5R3
Te= EF, -f
a
ee ie Tle oa Dye -tsmA
246 Irwin, Basic Engineering Circuit Analysis, 8/E
3.77 Solve Problem 3.35 using loop analysis.
SOLUTION:
3.90 Find No Wong lowe wala sis,
= 2B) = Ree Ve.
BeeRe 2k
LE, = GmAé
Dy Pye Vo
b=C, ~IYE, +& IPs
AIL = (La-T)@, + Tee
ta= Tye (Ly) Ry
Ty = T.2mk& [Mer teev]
Chapter Three: Nodal and Loop Analysis Techniques 247
3.78 Solve Problem 3.37 using loop analysis.
SOLUTION:
3.78 Find V, by Aewe ard ley.
~e= Pg (OT, -Ty) + 2.0 5,)
b= Des Tey ein
\2= Tyts + y-T,)ey
Ty = beh Vo= Nv |
2
248 Irwin, Basic Engineering Circuit Analysis, 8/E
3.79 Solve Problem 3.40 using loop analysis.
SOLUTION:
R= P= 2k
Ry =¥y= Re = @.= iat
Tys -2mA
T,-T, = 4mA
“b= g(t, -r)1+un4ze,
bo = by (tye) + Oe (ty B+ 8 (44-T,)
z= Pots + Bs bte-t,)
x
i
Tse
s = 7.5) mA [Vo= Sav
Chapter Three: Nodal and Loop Analysis Techniques 251
MATLAB WORK
reisv
EDU»
r=[=2000,0, 3000, -1000,0;0,-2000,-1000, 4000, -1000;-1000,5000,0,-2000,0;0,0,0, -1000,20
00;1,0,0,0,0)
r=
-2000 0 3000 -1000 Qo
0 -2000 -1000 4000 -1000
-1000 5000 9 -2000 0
0 9 0 -1000 2000
1 Qo 0 0 0
EDU» v=[6;0;-12;12;0.002]
ve
6.0000
0
-12.0000
12.0000
0.0020
EDU» i=1000*inv(r) *v
2.0000
1.0986
4.0845
2.2535
7.1268
252 Irwin, Basic Engineering Circuit Analysis, 8/E
3.82 Write mesh equations for the circuit in Fig. P3.82 using
the assigned currents.
2A
(>)
XY
Is
42 ~ Ve + 42
WV vi VV
5Q
0.5Vy
12V *) Cay <p> Cn 7 (ay CG) 20v
Figure P3.82
SOLUTION:
Raz bid rete. tp rathions
Ves (x, -E\s
@ 3865, -1-25i,-06
® eT, - 2 Ty-Ti)+-Z0
® (S,-e34 + .-2,)S + 2ry =12
Chapter Three: Nodal and Loop Analysis Techniques 253
3.83 Use mesh analysis to find V, in the circuit in Fig. P3.83.
PSV
4kO
vy <> ©
+ VA - \Z +
4V4
ev) 6 kO 2ka = Vo
O
Figure P3.83
SOLUTION:
> Q: 4k Ree blert Bae take
pathy oe 1 2 3
wD Me, f% Ax, Ne Ya= Ey@ Vo Tz By
G= Tyr G-h) ey E,G+@,-n\)0,+ avys0
b= T (ree \- ty T, (Get) +5 (4, -B)=0
Tz = -0-25ma
256
Irwin, Basic Engineering Circuit Analysis, 8/E
3.86 Use loop analysis to find V, in the circuit in Fig. P3.86.
2kO 2kO
VN VV O
+
12V G) aa 1K OV
O
Figure P3.86
SOLUTION:
3.86 hind Vo wing bony amaloare
a fe Bethe R-Zkr alle
*
~ a ada of ve ve Boke
a:
ey. T, - Ty
loco
“IZ= ZR + Ts Tes
Dae -1aymh
| Vo =-n33V \
Chapter Three: Nodal and Loop Analysis Techniques 257
3.87 Use both nodal analysis and mesh analysis to find V, in
the circuit in Fig. P3.87.
6 Vy
t VA C) oO
Te ?
= 12k0 vy. 12 ko Vo
4kQO
oO
Figure P3.87
SOLUTION:
3.F7 ar bd nodah bom find Vo
bvy
= cna Qysiwzka Wrz eka 2s-4kn Cy Al2en
Be ve CS
yy poe ——C2)— .
Be BA aE Ps ane No
ov
Muah. odak
Ty -T = mA VarNe = 6 Vx
GYx+ @yT, + Ri Tso Mx = 2
o= T2% + Gt e22+ G-B)ey Ye 4 Ye 4 Gxto? <0
2 5
Vy =f ©) es
a oe
Voz Ts lg 1 [a Ry
Tes lta
[ven |
258 Irwin, Basic Engineering Circuit Analysis, 8/E
3.88 Using mesh analysis, find V, in the circuit in Fig. P3.88.
Oo
+
Ve
Q }
as t 2kO
4kQ Vo
6 mA aD 4ka,
oO
Figure P3.88
SOLUTION:
3. BB Fink Yo vowme, mtsh tnelapre
ada b, Reha = dee Lee 2k
Yk * + V2 Bs CTa-35
“ye a Ry Vo Vs = Ry
ln LT, = bea
iS
Ne. ty
4toors
o> Egh+ y-r, 0,4 G-T Db