g
22:923 EXP NO
Land
5 4 PROCEDURE APPARATUS ALD
tial remaiOS
Ge 6zeO apply Mcarammeter Note 3.Make forWaid EoY
2Make 1.bias VOltmeterome
piecesand diode
(mA)
mil'- TO
dio A
TocreaIe
de Move nilll-
a Meatile p-nunction draw
0
foruard Least circuit
ol
anmcicr forwadand
aUreAt the ajtey the
ariY
the coMectfo0s
count
zer0
Cnd |-/characteYiti
coOtat Qnd ammeta,
sand -
of
remaiOs biOs diagram as G0 I-V
ud-biaS contact Csem-
0:9V) fonard mA VOlt
and pper high CHARACTERISTIc
TUNCTON
DODE
Voltagc eversebias
eul
Iittle inct nedt votmeter
one conductor)
Zer OE resitaDe
qive
VE pOtetal cleaO 0a
CTE CUrle.
Veltage tocwarcs zcO thc Yor ,ne OE
O£ dfodea
key, TheoStat P-N
dde Qy kes ofand
cadn diider pnuNCHiONfor a
coDetin 0-
upta votmeter th (OO
ncton paritVe K diagan one2polt
CuICOA
Voltneter 0A
o3K Ctheortat)
C) CMMete O-a
batters
ed
foY
Kot
and it
to 51
50V 3V DIAGRAND
CIRCOT
Poten Potential
divideY
K
tig
L
duider
Fig
: Fig
p-m
p-n
junctin
junction
+
diode
P
P
+ diode
-re
ver -
Se forward
based
+
biased
{mA
curremt 15 I3: the
takeolt MakeIF: YCNerSe
Starts l6 l4: telerse
n.biasFor the YepreicOte 8:Tmcrease
aIeMt WE
H currett
presents loulythaennd flousing mio: Mar-ammneter the 0:
T Make q:
(MA).
mico Make
Move Noke ke4
Make Record formard VE
poritive
ammetey
-bias becQMes
Ve layt at VE urrnt
the all cicu
xeverSe mMeHfo0S you oMecurrent foxuard =
25V Voltaqe
contat end 0:12V
coun
O:V
ineases
Yqpidly A diaqxam
Ohierations
aowD" The and
Coatact Of breakdown 0:4V
(VR) utll end does The
touards
cuLreat inert zero Det beyend
LM of giVe as CUrreDt first
Mot amMetaMlI
Ve 06Va shoun "
Staqe
zer0 the
poten
tial clean archange ctage Jlowy
beomeg DgatiVe
Yading Key foL)ard
glen breatdow"Staoc Motc
and
reaes feebls suddenly
areases
and n and
Aote
K diugad aheqd Much
end (heotat)
divderOl4heter(V)and tp YCCOrds a
suddls
the 20V Ycerse VoltMetor then
t0 cotcipondigthe
Nouw
Cunet an Note
Th
cCOt raptdy
V take iMall
the
and
out
53
GRAPH:
MODEL (a) VATIDN
0BSER :
Table Forward
5 4 3 1
S-NO
9
leastRunge least
for Ronge of
Forwaid -
Bias
forward cOunt VO1tmeteY
cOunt.Of
Of
v milI meter
Volt
2-00 bias -
|50 1-25 1-00 0"50 0-45 O30 of
0-20 0-00
Voltaqe bi'as - milli-
ammetcr -
A
voHáge ammeter
CV)
forWardcuTY
andent
Forward
005V(0-3)v
Co-10)mA
5.7 4-6 3-6 9-5 02 00
CuTrent
(T)
(mA)
RESULI PRECAUTIONS
appiicdbe
appled 3 he 2. 1.A
4 becrcuit 14
charactentics
foxad I-V Reverse Foxard Key
Record
cONNekilns
haud
- -
and bias hiar our
he
Yeverse Votqe voltage oherVatioN
sholld
used
bidsk heyd n
breakdon
beyond be
circuit
net a
plotted hrcakdowO and aheod
qlueO
Cean
opeed
aod
chaud Shouldgat tnt
wben
pot 55
Reverse
-bias (b)
GRAPH
MODEL Table
6e 4.
S-NO
8 6 3o
for Leastmicro Coumt
RangeofLeastof
Range
YeverSe
Reverse COumt
Of
-
Yoltme
23-6 20 19-5 (2-5
-bias oF
15 3-5 bia
s micrO
voltage ommeter
voltmeter ter
voltage
ammeter -
(V)
and
Yeverse
Reverse CurYent =
(0-30y
2yA(0-100)yA 05V
28 29 195
18 6 cuYYent
I
(WA)
