This document contains questions from a third semester B.E. degree examination in engineering mathematics, logic design, analog electronic circuits, and other subjects. It includes questions ranging from expansions of functions to solving differential equations to designing combinational logic circuits. Students are instructed to answer five questions total, selecting at least two from each part. The questions cover a wide range of engineering topics and require mathematical, analytical, and design skills to solve fully.

1. ,n E..
IOI'TAT]I
Third Semester B.E. Degree 6iib! lDec.20r4lJan.201s
Engineeri;;g M aiiig#i(ics - rrr
otet Ansn'o-.n! FIWfull qt.stions, 5eL.tihe
dleosr Ttt/O.tu.stions from ea.h parl.
1
z
Fi
,i
2i
;Z
a.
2i
Expand r(r) ="Eiiii
lr
l.t 1.5 5.7
nr (0. l).
c. Solverbe inrcrral cquarion
Ftr i .tr^e or'he li,mr ) = Je b rre dJn:
v L() li r2
60 210 ua 214 100 330
56 lr t7 2t
FiM $e con(ant terh and rhe firsttwo hAtubnics in Fouier series expansion oly.
FiDd Fouriertansform of e' and hen
l'iM ljouiei siie ransibmoi f(x)=
Lse graphical mcnbd b sollc lhc follo{ing LPP
N,li.i.1izc Z =:0rr + ioxr
Subjeorb xr+lxr>si
21r + 2rr:20i
3x + 2xr:21:
i .ll
Fn rarnna possible solution of one dimensional heal equation br sepdable !ri!bl.
merl]od. (rohint
A recra.gul, rute h i.suldred slrlice is locm tride and so long compared to ns *idrh
thd n nEy bc co.sidcrcd irfinile in length trithout innoducing an lppftciable eror. lllhc
tenrpenture oftlr s|o c,trey= 0 isilenby
=20(10 x), s <{< I0
n.dthe$olonsedgesx=0,x=l0asxellastheothershorted-seaekeptar0'clirdthe
te pefuluE u(x, y). (r0:,r&rr,
I,::
l' ,,.^

2. l0MATUt
Solle Ihe aollosing LPP by usins sinrpler medrod
Maximize Z= lxr +21r+5xr
. subje.r ro r, - 2xr: , <,r30
'I ixr +2xr < ir6o
i +4r: <421)
, x >O.x: > l]. (DTrhrkt
PART _ B
Uso the Causs Seidalner ive herhod ro solve de systenr ofhrcar equations.
27x + 6y z = 85i 6x - 15 -
+ 2z = 12: x - y + 512 = I 10, Cary our I irenrb.s by raking
lhe initial approannation to thc solutiotr as (2. l. 2) con$ds lbur decnnal plases at each
stare for cach va.iable, (o7Nrr.&n
Usine the N ewro n-Raphso n nethod. tind lle realroo. oltlre equarioD xsinx - cosx = 0 near
to x = n. canyoui for itemrbns (x in radians). (06Ni,rkt
Fiird tlre kgest eigen value and the coftespo.di.s eisen lectorolrhe nairix
f 4 l -l rL
I
c- : 1 -l bypoqe merhod l.* 0 .e nr, ccro.. Pero{ .cmron!
( 2 r 5l l0,l
-,--,--;t_s-
'c7,-'"'i*/ "-; l
p i"l;:;---...
'!=t a
Iind (0 I ) by using Ncwton s lbnyard nnerpolarlon
blckNad intell)olarion lnrmln non the data:
Find thc inleryolating polynonrial (x) by usiig Newton divid.d
'dx sns Weddlet rle. Taking six equtrlsub i.rerlals, compaE thc esulr
0 in the folbwnrs squarc mesh. Caftyout Iwo iterarrons
_l
lor the sque meshCilen below sirh u= Oon rhe
(06Nrrrk,
J.
l
() -8 t0 212
2 l .t 5
lil

3. =0, u(x, 0)
i-
1OMAT31
4
( rva ute me prvohr varues ot
rr=16r,
m irDns@ ulo.r)=0.ur5-n=o. 4raol'a
8 a. Fmd the z-rrartms or u 1l)".[)" ,,
t2l lltl
b. Shte a prove idtial slue tbeorcm in Zrrars
c. Solvc lhe diEeence equation
u : -2u". +u" = 2"i u, =2,ur = l.
(l
4",fS
I;$r3' ;t- ,./,"/

4. ,,j,.."
ILSN MATDIP3OI
Third Semester B.E. Desree Exa mfi-siiiiiii Dec.20t:l/Jan.20l s
Advanced Mathematics - |
ntet |lns|'.t a,t: FIYE fu questio,s.
-
,
I
i1
3-!
te
b 1..,J.'clodll'.,,J:1pll.deot.,e.o, ple. .. nofr l ..u.o ...i.a
. Ir,: lnr. ., . rt r..a. :1drb".x .e. ,'aodJ
d. P,ovcrhar (cos0 +isinsL){cosor-i$no:)=co(o +e, +isin(or - o,).
Find arcn" dernarllc 0f."" cos (b +c)
Ify:a.onlo-gx)-bsin(logr)ptuvetlurxrr" :+(1r+ l)ry, j :(D:+
ComFure rlre n'r'de arives ofsin x sinlx sin lx
1)v" = o.
c Epard og(l + sin ) ,n powc6 ofa by 'laclaurib s rheoreir np ro tnc dm c.mahingxr.
(07Y,rk,
nlr rsual norlrions prove thar
Pnle rhat thc cuflesr.uts r)i = a
Dcfine Gamtuaftncrion Ptule thatl(irr l)=il1n).
wnl uslal noiarlo. prov. rh.r Of..O=ffi
; 7-rldo
L' r',r,"". J Jr': +r:r,r'ar.
Il
B(..+)=2r'"'p(...).

5. MATDIP3OT
a, soLYe : sec: xtan ydx + s4r y te rdy = O.
rr sorve lI=r+I+lIl
dx tri
7
,l
. i.r
N
.$"
c sorv.: r+yorx=sm1.
'''di sotve: (x2 + y)ar + tyr + x)ay = o.
lJ.
, r#14 o4+rr9-0"=0.
al*' dr' d
u sorve ii?y+sy=e'+r'
". .",,., {.a'*,-*"dt"...
t)

6. t,sN 10ES33
Tbird Semester B.E. Degree Examination,
Logic Design
Der.20l4l.Ian-2015
]l.4c.
-
ia
?E
?a
a
lrote: A,tep/ FIVEJitl qaestio,s, selecti g
aleast TlfO qn6tions froh eacn pan. :,
l
I a Deslgn, conrbnurinal cncutr shi.h lakes Nvo 2 b b,.ary nl6bets
gere6tesmoutputeqnalto l.nherthesunrofthelvoDnmbcsisodd.
b. CoDrert the gilenBoolean tunctioninto :
i) R = r(a,b,c) = (r+b)(b+;)minrem canonical Ibm
ii) P=f(x,y,r=x+xz(y+rnraxcancaioiicaliom. (06y,rL,
c Distin-quish pnne inplna.! and essenrial prihe inpliclni Deiermirre U and EPI for d1e
give. tuncrion N = t1a, b, c. d) = r(0, l, 4. 5. s, 9, ll) + d(2, l0) . sinplify rhc eircn
tnnctnhrnd rnrplenentusi.s logic qates (o$Ierrs)
a Snnpliay the givcn Bool.antu)crion usinC Quine - Mccluskey nrethod l
Y = (r b, c, d) = :(0, l. 2, 6. 7. 9. 10, I2l + d(1, s) veiry the resllr 6i.A k-map
Frnd thc nrininal sunr and minifral
tecltique Sohe bynsine l-varlablc
5. t3. t5) +d(8.9. 10, ll).
(r0lt.rlo
lroduct jir fie girn Boolean iirnction, using NlEv
map.nd 2 lxriable nrF y: (a, b. c, d) =:(2,1,.r.
(l0marl(,
a. Distlnguish bet*een a decoderand an encoder.lmplencnt tulIaddernsine IC 74113.
(03 krlo
b. lnlPlenrc 3 bit bimryto snycodeconvesio byLsinglC 74139 (06iulrkn
c. Desig. a prioiny cncoder tur a sJ,sren with a Lnpurs. rhe Diddh bn vilh hishe$ priorn]'
encodnrgro 10, rho MSB wirh ncxr p riorir y encoding to 11. 'hile rhe LsB$ith leasrprio ty
e.coding ro 01. l06vrikt
Reali2e rhe rbllovme Boolear tu.ction: ! = {w. x. }. z) = !(0. 1,5.6,7, 10, l5) usine
i) 16 to l MUX ii)8 r I MUx iii)4: I MUx ooNl'ik,
with a neat logic diasram, cxplain cafty look ancad adder (l0ntrk,
PART B
Explain the qorking olr masler she SR j'lip,flop with rhe help ola losic diasmm,
lnncilon rable,logic symbol and tirn ing d iagra.r. OoNr,rkt
wiihandat logrcdiapmn, explain dre Norkins of po s il ivc cdg. iriegcrcd D rip nop
00Nhrk,
a Obranrthe c hara cturisr lo e.lultror tbrDmdT Iip ilop. (06nerr,
b with a ncat losic diagram. cxplain thc op$alio. ol4 bil SISO lDidirecdonal shit regster.
106Mlrln
o E&liin the worki.g of fonFbn binary dpple up counter, connEured usins positivc cdsc
biggcrcd llip-iop. Also dra$ thc rifrrngdilgBnr. (03Ntrrk,

7. 1,0........
Compare Mealy and MooE sequfliial cncuil nodels.
Analyze the sequenrial circuit shoM in Fig. Q?G).
l0Es33
0. 2, 3. 6, 5,
' rr8' a4cl
writc input ind output eluations, iiansnioD table, stale table and state diasEm.
Wriie rhe 6asic rt i;mended steps for the dsign ofa clocked slrchronous sequenlial
CompaE syncluonous and Eslrchroiors counter
a ..qle dl .inur a. one rnbJr 6ft1one ou @i The rdeJ.1ddm." r.,huk
'
n, rl,e
Fis. Q8(c). Dcsisnthe squentillcncuit wilh IK nip-flop.
Fis. Q7G)
Fie Q8(.)

8. t0Esl2
Third Semester B.E. Desree Examioation, Ded.20i4lJan.20l5
,Analog Eleclronic Circuits
;
1'"
Z:
;a
7!
c:',
a=
?1
a
,z
il PBacaldlode nmdcl.
lii)Piece*ne liDearnrodc. (08llrrk,
Consider! halfwxve and tullsavc rcctiner{ith caFcnorinput lllrer Derire an.xprc$ion
lorripDle fa.tor. (o3Nhrkn
Ernlai. rhe opedtion ofDeoarne clanrper circun. (0lllrkt
Note. Answq FIVE Jittl qteltions, sele.tihg
al least TwO questions fio,a each pat,
Obtair e$re$nrns tnr *ability lirct.r S'.o. SBr
(l0Ilrrk,
given conditionsi I( = I tuA. S(. =::0,0 = 100.
the cir.u diag n 0o^brr,
Conside. a nxed bias circuitofatra.sistor.
and si Drax thc crcundiasaD.
Desisn a !lr0se div erblxs circun forthe
i = I V.V.r=6Va.dv( : 12V Draw
a. For the co.rmon collector cncu sLorn nr Fis Qj (a). the tr.nsistor h-pannetes ar€
hr. = l0l, b( = 1, L, = 2t uA,V. h. = 1.2 K. Deremiine R,, A. A,. A.. and L,, lor rhe
.n.uit (r0rlsrn,
(r)
Srare and provc Mille.srheor.n
Obtain r-paLameter nDd.l aor CB mode.
a. ExDlaindre lo$ nequenly respoDse olsinglestage RC coupled amphlier.
b An amplilio consiLs oll idcmicrl nagcs ln .dscadc, ihc ba.dwidrh oaorcrall
cxtcnds nom l0 Hz to 20 kHz. Dctc.n$e rhe bandvidth ofjndjljdual $rge
c. F.r an anlplifier. t]t midb,nd eai. is 100 and loNer cu.offfteqnency is I kHz.
re r:!in olrlre amplijier aL liequc.oy ol20 Hz.
lckD
SVtt

9. l0Es32
a. Denw an erpEsion lor second harmonic dttortion in po*er
b. A oofrplemenrary stmetry push pull amplifier h opertcd vnn
Det€mine maxirnun ouout Dows. power raii.s oatransisros and
CoBider Drlington enitter tbllo$er c;cun. Obkin expressions for Rir. R,, Ar. A .
Comparc R, a.d A oleach and oveDll $ase if Rf = I 3 ko. h" - l. I ko. hrc - 2 5 i lor.
lr.=50 and h*= 25IrV (roirlrk,
For a .iiage series leedback ampliner topologx obtain expEssio. tirr Ay aDi R,, Ako
e$lainrheprirciplcoflohsgeanplififtusediniledbackatoplifiers. (r0vlrl,
!xplan1 the conccpt ofpositile feedbBck used in oscillatou.
Obrain a. expEsslon rbr ftcquency ofoscillario.ln Colpix's oscillaror.
ln a Rc phase shilt osillalor nsing tansislor, f, =10 kHz, Rr - 25
R. = 20 kO, R = 7 I kO and n,. = 1.8 kO Calculate the capacltor C
aeplifies, using l-poinr
(l0Ierr,
v.( =110v, RL = 5.r,
(r0rr!rr,
/"il.,;."
C..ndera n channel JFET using vollage dilider bids. ExplBin itsDC analtsis ALsodern!
an expE$ion for nansconductance gn. (rolr,rk9
Design B fixed bias cncuit ofFis Q8 (b) to have rc gain of-15. Calculatc the ralue olRD n)
get thh gain, il vDD = 40 v, R. - I0 MO, IDs = l0 mA. vr = -4 v. Y.s = 20 $.
Ci = 0.1tlF. (i0|lrrk.)
WD
c
ftr+
2ol2

10. US oriES:12
Third Semester B.E, Degree Examination, Dec.20l4lJan.20l5
Analog Eleclronic Circ.|its
Noret Antver onr t'tyEfu qrcsrions, seledntE
atleast TwO tlu$tionsJioat ekh part.
Fr.
,2
aa
E!
r Dcsign a volage divide bias cncuil lbi lhe sp.cificd conditions
lc: lrLA S =20,0= 100, VE= lV.
b. Deienninev) for the nerworkofFig.Q2lb) tbirhe
PART A
oathe t*o lcvcl clifpcr shorvtr in Fig.Q.lG) lansliiearly liom 0 ro
sk.tch the hNGr chrscterntic, a$uming idealdiodes. (03 rrlrkt
v.. = t2v. v.r = 6v.
b with dr hclp of neat ciEuir diagram explain rhe {orking ofa nrll rvale bridge recrificr
Derile expresioB &r i)lD.: ii) hNsr in)PD(: iv)P{.r v) Reclifier elficlcncyr vj)Rlpple
iirctor. (rrnr"rb
7
u
Find the ouqut aveibmr
FieQ2(c)
FisQ2(b)
shosr tu !ie.Q.2(O. calculate rhe
Draw M un b}lrased CE lmnter bias corfigumtion circun. Derive rhe expr€sins tor
i)Zii ii)Z. and ni)A.us s the model. {toiurrkt
For ft cncuft shown iD ljlg Q.lo) using sihon transistor{nh vtsr:0 7v, B = 100, nnd:
i) S(IcJj ii) s(vDr: iii) S(B) sirh B(r ) = 100, p(r,) - 259', morc than B(T ): iv) Nd
change iD l. if 1." in.reases fronr 0.2 to l0!A, V$ drop tom 0 7 ro 0.5 and 0 ind.ases by
25%
j +-" +*.,.1,

11. 6*
il,,
06[s32
Describe Millem efecr andderilc an equaion tur Mill$ nrpt dnd ourpur capaciraDces
Detemire the lower cur ot nequency ror the ner*ork sho{" . .,..q.r(o). ',]:,tili'l
C. = lofF- C. = 20!F.C.= lrrF, Rs= 1(r), R, = 40rO. Rr = loKo. R =2KO.
R. =4Ko. Rr =2lKO,0= 100, h=rO.vL.=2oV ooxrrk)
Fis Q.,1(b)
PART B
Li$ rhe advantages ofneg0rilc feedback Derirc expressions forZilnd Z,rfor a volragr
seies feed backamplifiq. (0si[!,k9
Usins complete hvbrid nodel dc,ire the expre$ions ibr A,, A,. z, .nd 2,, ror a nvo port
sy$cr orNhrk,
a. wnhneatblockdiagram,explainrhd{.rkrneolacla$Datuptifier. (07N,rkt
6. lor a class B amplirier prcudme a 20V peak signal to a t6oload and a poNer $rppty ot
vc( =10V, dercmine rhe i.!utpor€r.ontpuipoBcrlndcncuir eflicjency (rs trrrrr,
c. Calculate rhe hsflnonic disrortion cohponents and r.hl hannonic disioitioD for an outpur
signalhaving fundame.ral @tlirude of2 5V, second harnronic anrt,rudc ot 0 2sv, thnd
hamonic amplitude of 0.lV aDd louiih harm.nic amplitudc ol0.(]5V
a. Withneatcircun diagmm, cxpl0in thervorkrnsof aWicnB dreoscjltaror
b l-.oo r'-eclracrer"i( o'dO'r '( Oi1l.
c. A quanz crysral has L = lH, C : 0 olPF, R = iKO. C^ = 20?F Calcutarc the
P3rallel rdsonsnt 6equencies.
Dncusslhe diferen.c bedveen !!T and BJT.
Ddn€ thc expresion ror Zi, Zo and A, if,FETvohage divider conisuatton.
The nxcd bias connguiaion olFig.Q 8(c) had in operring ponn defitrcd 6,
a.d I," =5.625nA. with lD$ = lonrA and vp = -8V. Thc lalue ofy.s is
40trs Detemine i)g^j ii)ri: iii)Zr iv)2.,i !)A,.
v.^. = 2v
f _.*
-_l t
V
I
riE.Q 3k)

12. l0tT35ll5
Noie: A,strer
'IyErt
tq etioas, selectins
at least TwO qu.stiohs ltoh eath ptn
EABI:!r Detine the aollorvi.g terms as alphdd to !r electronic irx.urcnsl
i) Ac.uac! ii) SisniticaDt fixuE iii) R.soiuuon.
Des$lbc $e lolloniDg inodcr oloFeralio. inr dualtrace oscilloscope:
i) Anc,nate mode li)Chopbode
hxr is rhe i{,1. olTnne hrc. q.ne',nr'
Eplail dre opcratioi ol
Erplain 4csh sroose dd
J dir rJl $u a e o{i lonoFe
'h
rh< re | ,,t l
t. ..
"
ueo...r'..,.-'rda(r ao c,.ie. .ddi i -rig"
5
ElBf=_C
a. har is Barkhrusen citeial,Erplain yirh block duelam AI sine{quarc
b. Explaingeneralputechancte.*ics
c Exph,n rorkilg $eep lrcquen.! qenenror.
Third Semester B.E. DegrecExamination! Dec.20l4lJan.20l5
Electronic lnsirumentation
a
:,
4t
,-
ia
!a
:=
...
a:
a
x. Explaio rhc rorkiry ollinear ranp rr?e Dv:rl. (03 rrln
b Erplainlhc*orlingoradic alEequeDclmerer$nndehelpolablochdiagram (0srrlrk,
c vh!t il ,'r digit D:ivl1D.fin.lh scnsnilitr lorr*kt
a Dmwrhebasic blo.kdiagrx'n.ranlscilloscopc lxplaiD rhe tu.crion oleachblock.
(03rl,rk,
Draw a basic Dc loftmerer.n uit, derlve eprcssion lor nultifier Esisrance
ns rlue for ! oltage mnge ol(lr ll])v iaa flll scale defledion cumnr
unem.l Esistan.c oltbern.teris t00 O.
[rplain the sorkinsofa rrue RMS oLtnererwnhnrchslp olasunableblock
phosphor noragc rechniques used in $oFse oscilloscope.
.Io
,f
a Tn. Whcactone bridse h shorvn ln FrgQ6(a) below. The gallxn.ncter hls a cuftenr
sensnnny ol llororAA The inteD,l rerlsan.c olgalvanomerer is 200 o calcnhre rtre
dcie.lnr oflllranonrerer caNcd dle ro 5 O unbalan.e in rhe arn AD (06rLrk,
Fie.Q6G)

13. R = t200 !),
a. Explain in b.icf cffects olphoro conductive
b. Whal is LED and LCD? Conpde LEDand
c. Write shotnoreson I
i) RF Po{n MeasuebeDt using Bolomter
l0IT35
consiants are cr = 0.5 fF.
(Mnhrk)
(MNrrrk,
de.ile cxpEssion for Maxwell's bridge lf bridge
R, = 700O. Rr=300O, Find the rcsistance a.d
Eaplain {asner's Eaith conncction.
ExFlain Re$srive posrion TDnsducer and a Eshtancc posnion rransducer nscs. shafr wnh
a stote oll inch. The total esistance ofnre porcnriomerer n 5 ko. Calculare rbe ourput
von,ge *nen wiper is 0.9 inch fion extEne end ilapplied oftage is 5v. 1m hiko
Exp lain c on stroctioq p nciple dd opeErion ol LVDT. SIos chamderisiics cs,e'
What Ls tiiemisror? Ex.lain dlllerent lims ofthermisinii
and pnoro volta ic tansducer.

14. ,6,,
Degree Examination,
Field Theory
Dec.20l4/Irn.20r5
Max. Marks:100
ior..l.A stuer FIVE ldl t! restions, s.lectihg
al.as1 TflO qkiions lobt each put.
2. Mithij! ttt14 iJ anj. atq he suitahb' aulned.
PART A
x Srate vecu fonn ol Colounbt la$ of force benreen No point chrses and nrdicate the
uniiioldre quanrirics inthc cqnation. (06 usrr,
b. Slate rd prolr Cau$ las ibr poifl chdge (06 iurrr.,
c Tno poinr charges. Q and Qr are locatsd ar (1. 2. 0),, a.d (2. 0.0),, respecrnely Find the
relxtion beMeen the charses Q and Qr suc| rh0r rhe roral lbre on a unn poibe .hdrge ar
1 l. 1.0) hale i)nor componenr ii) no y . componcnr (0trrark,
Third Semester B.E-
d
:l
,.
;n
?-
22
!.
i,1
i-
a:
.:
Deinre porentlxl ditfere..e Md absclurd p!tental
E$oblishrbe r€larion E= w.
llectrical FreDtial itdn atuitmr) poiix in lice spa.e r!ir.n as:
v=(-l)r+(v+t)r (z + 3): volrs. At p(2. i.l])find
iiil E lv) )
a Deirethc c$ressior lbrPoissoo s lnd Llplacet cquatio. (0r usrrt
b wnte dreexpre$ion lir LapLacc sequation m cylindrical arrd sphe calcoordinares.
c SidEir d Ftue unqurre* the trenr
d G rci rhe por.n d field=1.'z-[7,o8:
i) F,nd k ilpotenti,lneld saristies Laplace sequation
ar ( I l)
StaniDg linn BDr Savod's lar.
ponrt due to i.itc lcigthcutrenr
Veril, Stok. $..re,n $r
dc.ive thc expresion lor rhe mlnetic
tr,. r.r,r i =:,.n,oui**6 ru,
L
Q4(b)Fig
lxplain scalr a.d yectorDagncric porcnnal.

15. Derive expression for magnetic
ii) DitrereDtial cuent element.
a. ntte shoft notes on :
il SrR and reflection coeflicient
A I0 GHz plane rave in 6ee spacc
i) Velo.ity of prcDrsation
A curcnt elmenr I dl, = lo
I 4 (Am) is located
I:dL = I o
6
t&- 2 &+ 3;il {Am) is located at P, (
i) Iird lorce exened oi 1:dl: by lr dll
ii) fina force erefied on lrdlr by l:dl:.
B
00 Mr'k'
ar P (2, 0. 0) and aioth* cuMt elemeit
-2. 0, 0). Borh are in tee spae l
10E535
a. Lnt Marwell's equalios in point fomr and integol iom. (03 n rrkt
b A homogeneou nateiial has e = 2, loi I/n and u = 1.25 x 1(]
I
lrm and 6 = O. llecric
field inknsny ?=4ooco(l(]9r-k,)alv/n. lfall the ields vary siiusoidally, fi.d d.
B, H and k usirg MaNell s cqnarions. (lzrtrrkt
st,rti.g fom Mrxwell eqlarioc derive nat equation in E a.d H for ! unifom pLane
wave ftavelli.g in 6ee space. (r0rrrrkt
State ud explain Poy ing theorem. Oorrrrk,
lii) CbMddislic impedancc ofthe medium
iv) Amplitude of m,gnetic neld intcnsn,
v) PrcpasEtion con(dt B.
has elc.rric field intensity 15 Vlm. Find:

16. l0ns34
Third Semester
E
2a
5!
Zi
=a
ai
!
Not.. Ahswa FIVE fall questiots, eledntg
aieast TWO quesrions lrom .a.h pa .
PART - A
a For lhe dehvo.k shorn nr lle. Ql(a). Find the potentialditfeE.ce bet$een M and N usnrs
b. Usins nar'deltx transturmalion, der.mine rhe resisBnce behreen lvl and N ot nenvork
c For tbe etworkshoNninFig.Ql(c).n.dposerslFpliedbyl0V$urceusinsmcshcurent
dndlysis (06 t'lark,
d. Forthe nclrnork shosn i. rig Ql(d),lind dE masnitudeofsource volta-qesuch thar cunenr
in 4 olnn is zero Use node loltaee analysn. @6Nrr:kt
Fie
F1s Q lk)
'' J'clcier' .mdeir rde'.0'n'r'rl'e40.p1e.
Dodc incide..e
'ma,x
ris Q2(O
List the prcperties ofthe eleoient
(06lrlark,
Qr(b)
I.ig. Q2(b)
the network shown in Fig Q3(a)
Fig
for thc ietwork shown in fig Q2(6) Detenine branchloxage Onr.lrase basir
wnte KvLequarion ror rhc ncs..ork shosn. Draw rhe dtrarorthh
"** *.. *,11i'i''ili",]
sho$ tbat these two.ehlorks are dual (Fir Q2(c)).
rie. Ql(r)
Forthe cncuitshom in Fig. Ql(b)- li.dcutrent l'
Slalc and prove reciprocity iheorem.
I ol:l
Qt(b)
Q (d)

17. t0Es34
Sule and explain naxinun poo tansfd theorem when load impedance co.sisring ol
variab le resis r anc e and van ab E €acta.ce (03 lu !r[,
For rhc net*oftsho{n inFrs Q4(b). Dra* rhe Thelennr 's equivx lent . f. un (05
^Drlt)Usilrg Norlon theosn. nnd tnc curcnt l olihenedrorksho*nrnFie.Q4(C) (07M,rk,
F e Q4(b)
a Wlar n resonance? D{ive an €xpression tur cur offliequencies.
b Calolaie hallpo$erneqnencics ofscries rcsonant cncuit where the resoirn.e
ls0 KHz and band i,idth is ?s KHz
c Ior the cncun showD in Fig. Q5k), find h{
the f.mnla nsed Take f= 50 H7
elues olcapacitor for the Esonance. Derivc
(03r,rln
r=0 . {o3lrrrlt
In reciruir shoyn, inIig. Q6(c). swnchkis closcd alr =0. Fir)d y!(0.) tud ViL(0-).
-d=-=r
't-- J
whal h iritill and nnal condition? Explain rhe bchavi.Dr
For rhe cncuit shown in Fig. Q6(b), ss ch k s ope.ed at I
state condition. Deteminc voltasc drop acros $,il.h a.d ns
fE. Q6(b)
Forihe.ncur shovn in Fis Q7(a). switch k n cbsed
inductance is 1A and initialvoltaee a(os the capacndr
For fie cncun shown in Fig. Q7(b) switch n chscd at t
inductmc n 2A. obiai.expresion Lrvr(+) lbrt>0
1' ta t,t
ol R. L ,nd C lor drc initial
106 rrrht
= 0. ancr reaching dre sterdy
Iimr and e..nd dern?ilve n
ar t = 0. Thc inirial curent dunLSh
is Lv. Obtain e press i. D lor crrcnr
(03ntrlko
= 0 The in,rial curcnt tluotrgh rn
(06Mrrk,
Iis Q?G)
Synthesis ihc waefomr shou in Fig.
Fig. Q7(b)
Q7(.) and nnd the Laphce trislor.l ofnre periodic
(06Nr,rL)

18. a. Obtain trmmission pdametm ir lem of hybrid p 6mtes-
b. For lhe oetqork shoM in lis. Q8(b). Find the z - pdametqs.
Following short circuit ffients
Fis. Q8(b)
and Yoltases ae ohained
t0E534
*pe.in@talLy;)
Ara," eorr
rA: L =-0.3 EA ed V, = 25 V
dL{ l I: - + l0o4 ud vaE l0 v
i) wirh ourput shon ciEuited i Ir = 5
ii) ifrIjnput shon ciruited : Ij - -5
Dettuii;Y - p,lmei6.
,
),tr_
.{J"
i{,'
'q
a!'
d'
c_
/.,
p,1
"/o