Physics CBSE Class X

1. lacericity
luctic Sunvunt- Eloo o utir dhang
Poptius ludie hang
Jndike thanges ttbrat ach trn and ika
dhargs upel oach atæ.
iTheante bdacaan the twethangas varis
dinutly as e puadut a th tuse charges
and inkeuly pyapartianal to the s9uau d
Bu distanehetueon tham
F X2
whu is a sensianl
iElotout charge is oNaLLed, i.a, it ca
naithar Ja ated nan dastayad.
tie harge is additiue. (achouait
um indiuidual charga). Tha is, ah
otad dage js he 2umcal ugts

2. E l t i c Lhange is uandtisd.
n-,2, t3,
2
=
.6X 10
Eltic wount
dumbal is I.
I t is the Jate s oalti tharu
Cuount JhaxgL
time
>ltic hange
t Tima
S.1 Unit ia dmp A)
t
dnpura = oulamb
Sond
Ampu - Juuht uing theunugh a
Conducn js agid o he
Ampau ohun
oh
Leulermb cange as in 1 suand

3. Ohun aniks tdie uvund
mulliampu (mA)
m A1o A
muowampeu UA)
A 1o A
Inatbunul mesuu cuweund is rmudn ®
I x t
t
1 Kaulamb IAmpee X |Acand
Ladamb: It js that auantitu thare whuth
thsraugh ha sircuwit whan dmpe
Luvunt las raugh d in i scand.
uuit
ludric usuent : It ia Lontiu and clased
path n alactic cwvwt
dkian wvunt
ThLanMAntianal uwwnt is in a disution
ppasite to hu etsons.

4. >{lectosn la
Lanvwntia wrnt
tample 12.A wnt eo.5A J cruwn lamt
b lasmant
elacoic bulb Jan o minutes. fin th
Jaws brough
un
maut aluutuit tharg hat las t
the iunt.
Solubion II -0.5A
t=10mùn=6o0S
Os knoo that
= It
o.5 600
300
dmaunt alcbc tharg hat ows
thraugh ha Lircult is 300 C
aws
The
4ilomant nlactic Sump doaw» D
douauos
uunt 0A which igh Jo 3haur
o 3 haus
Laslate th amaurt
shara hal as
hat lus
thoueugh he ciut

5. Sxukie tutie unt o.1A
Tume 3haun
=313&co
We kn that.
Juunt hasa
Tie
Juunt1Tima = hanas
0.4A X1cSoo 4320.0
320 dambse hanq las th
LAnduuken canies a tununt .2A.
2.
find theamsunt a hae that wil pass
truuph ha anduter is 30 sands Ho man
alctaan» oillow in this jima intawal
thedhana on 3 alatan sb t.6XIc?
SautanII = 02A ,t-30 A
g=2
-It 2 X30= C
6X1 x1o

6. ltic luturtial
Potadial Dillounua
hup
the
the wR clone o moL unut huA
unut
uem 0n point to u othen
V Lsuk dune (w)
Chana (
V-
voltsCv
valt= Joula
S.1. wit
lslomb
,Valt:1 volt iia the potantiak dilkewnce whan
J omrk is don to moe1C a thaege
am 0na poùndt to; the athen,
Patordioll dilhesena measuLd wsing
clauice callud veltnator
Valtmatw ds
aua.nus cghintad in parall
acuoss fhe pants ba mesuwwd

7. ampla 02: How muuch aR idona in msxing a char
2C aass duao paints haxing a
paturial d e
00
12v
Seluhon latential Hente =
12V
sAmaunt chan= 20
Wark dan = V
=12V 20
24J
Ts, 24 Jeules Loork ia dana
uut Diaaum
Jiut Diagram It a 2dhematic _dingram in
hichts ciaent campanunts th uiit
eprusented uusing sumbala. tsnvontiana
Amba a6me camm.anly se omponan
in ixt dinooms
Komponus mbal
2A hattuy ACBmbinakian H

8. Comporens
3. Ry uuith Copan
lugky an Suitth (clased)
5 a wi joint
iu enssi oithaut jalnu
ttnie bulb
8 usistn e usiatants K MmW
Nasiable uaistanga d ahesstat Mma
1o dmmaten
0
1 Veltmatn
Ohm'& Law-
VoC I
Y =Sanatant
V = R Cuohu R
Resiatanta)
&totemet: De aactaic kuvwnt auing
a mtallic wla is diuty prspartionat

9. ha potantial dilerana VACRsIids nds
povidacd tho tempeatue umains tha Sama
Resistania t is tha phaputy s tandutto
hahes tough it.
t eaist the
I
As JLsiatanu nouases the unt derunus.
SLunit shm (
hm a l t
A
Ohm- The usiatante o cshduutan is 2aid
to be A shm, iha uuant iA auos
haugh i uwhun apatntial dilleue ial
is oppliad acas its ends.
alt
*taukosatingusistaiun oondutan-
iangh
li
A

10. 1 Natuw tha
he matia
R
A
R-P A
Caha)
anatant sallad susiaivit
- RA
m
shm mabe
ihp RA
A mi Am pa
Raaistivity is ba esistante alCndusa
unit uth and unit tr0ss sackon ara
nample D.3 Houw muth wnnt. all an olactrir hulb
dauo am A 120v aoua, the Juistan
the aulb jilanut 200 9 How
mULth wwt uoill onRactic Jent co
da nam 4 220V Sunu, Au usiaian

11. al the Jhuaten tail is i0o.)
Salubion a) V-220Vi
R 1200
R
I
to Se
. ' I - y 200 V
R
=0.18 A
bV 220V
R
I-Y= 220 2.2A
00
EaxamplaD. The patential dillewnta bdioun tha tvuminals
an luctue Juatu is 60V uhan it draas
a unent e HA am e JouuUL 0hot
tuvunt wl he Jaatan t doiao i the patondial
enta in iuwuandto 20V)
elation Patantial Diheun V 60V
DU
ugjpint I
Ohm'& aw, 15
A

12. when thu potantial diklenanta is intu.
to20v tha unmunt ia givan b
R
= 20V = 8 A
15L
The udunt thnugh ta haaLu hatnma
The
8A.
ungh im
ample 2.5Resistance damatal uoin oonath im
n
is 26 at 20C. the diamuton ho
oie is 0.3mm, ohat allbo the Jesistivitu
he mutal at hat tunpexatuie)
R 26
diamaten =
0.3mm 3 x10 m
RA
p Rzd
1:81 X10°m.
. Th usistivit thaimdnl at 26C

13. Exaple12.4 d oi ogiun moterial JaNing ungth and
cuss-3ctlon H kios a elgtoanta a
Ohut wauld ba the usistaa aanothen wu
othesame matial hoving angth and aru
-80utian 24?
Aslukton Eon tha ut wie
Rp 40
A
Nou Serand winu=
2A
R2 R,
RgiAD
ausistanta the. new wie is 12.
unpa 12, dn aluttut amp,whake Aistanca is 20-L
nd a tondurto ah 4l asiatants axe carnu-
d a 6V battog. lalcilatel) ha atal
Jaaiatonto the iuit hi wrent r.nug
iha tinwit, ard tc) tha patankial dilkerune at
the alartut lanp Jand Landurtan.
DD
Soluksn ha usistants ol slutuc Jarmp, R- 20-
ha sistanta h a onduckw canneitod
in sias, R,RAN

14. Uhen he tatal JAsistante in u iuuit
R R,t R2
Rs20 +4L=24
The tatal putuntial dilMeranta atas th
auo tominals tha bodtary.
N = V
ahm'aas, tunt heaugn tu tiruit
6.25 A
24
dpplying Ohm'a lauw to the aartic aunp and
and
ondukan sepáncitaly.i
Ae
aat patanbial dilheanta 0 s adautnic Janp.
20 x 0.25A
5V
ond hat aunsu Landutto N = 16-25
IV.
R V =
.25
6.25 A
24
This i the ahtal aaiatanca thu sUi
Rsistantis,

15. Reaistns
Ra
wilmwwl -L
LWWW
il|-()-A
Conaiden thn.aáistus R,Ra and Rg connucted in
iasins. Lt vNa,Va o a patantias dillounta
aLrass , R ssparkiul
|Let ha wnt I Rauo thuuaugh a tha rasis
tas, Noku V, +V, 4V3
he uawt I is CRnatant
dLading to Chm'a Las
N IR
Now, dino. V =
V,V,4V3
8ubatiuting valus R - JR,+1R, t 1R3
AR =z(8,tR,tR3)
&+R, +R R3

16. aadwantaes
Lies kanockion-
n alad
I t is impharditnble b Lanhac on alat
aullo and an luutuic heatan in 2ies
t nd tuvuns idalydeant vol
to paoate phape
thu
i Laher ecampnnantala ie tuhuri J
itbaRan and none dhe athen Lamponets bao
ii T tatal usistane in a Athias dinuit
Keaishata inasiallukr
www
ww
( ) - 0
onsidon hre sABiSkMs R, Ra and R con
tad in panalll 0 shoun.
h Cunt
Jn hes sesiskuG I = I+1, t Is

17. Hu the patntial dilleunce () i costant
Auwding to Ghma Las
I R
'. I-
I3
R
= + +
R R R3
L =JL +L+
LRp
EnampalD. In ha sintuit diaaam qivan in na.213
12-10 upposeeHssborg R, , Rq and Ra houe
he values 5,16A30,uapertiy, whicl
hana ben conuted to a battesy 2
Caltudata (oa) the utent toaugh 2on Jusisbuh,
the
he ntal aurt in the tiuuit, and (c) t
tta uit siskarnu
R. M
w -
P R2
w
R 3
MMWA-
(v)
()- (A

18. saluutiow R= 52 R10n and R30
Eotonbial, Ailleanieawáss: iubatau,is
rding to Chm's Lass.
I
R
hatant I 12V 2.1A.
5
ueani I2
R2
The uant J3y
R3
12 6.A
30
The tata unnent n t ciut,
I-1+1,+I3
-.4+.2+0.) A
A
Tha tatal susistanta Kp ,a givon b
Rp R
6+3H
Kp 30
Ths, Rp 32.

19. anph 13 i n tha en uwa, R,lo , R=40
R 30, Ry =20, R60. and a 12V batteu
i Lannartd a tha avangemant. Jaluulnte )
the total Jasistanta in ta ciuit b) the tntal
wwwt lausing in tho tiuit.
åaubon
w
A
R
www-
R
Mww
R
K
uplaui dhe panalll suaisters R, andR
bya quinalut sasiskan oJsiatane ,R.
imila aa aplace dh.parallas Jusiatars
Rg Ry and Rs oy an quivalant aingla ust
istanta
40 y 8
R 8

20. 2+344
60 6 10
R = 0 N
us, tntall ruistane,R-R +R
8 t10
= 182
hm la.
R
I=2 64 A
2
Auating Mect losbicbwount
I
L
ensidan a
iyourt auina thn
aiston

21. Lt v ba tha potential dilkownta
ut e twut Lnu a tima
.'.Ue wak dona mise a dana thucuyh
pantuial diloue V
00
PowwnE
t
VI
t
P NI
Heat (H)W- Pxt
H-NI1t
IR
- 1 R IT
Le
This gthu aula'sJaw Juating
' th Juntdissipated
}dinetlappartiano squara atutnt
7 e ssiatana R
thu tmu t
anpla 12.10 dn uubi iion Jtansums eny-0 Jae
84 whan Juaing
ate And 360 W ohan tha Jaating s at the
is at he maimum
mLnimunm Thei kaltáge . 220V, áhat a u he
urnt and the uistantin each c

22. Pauaa
Valt x uunt
P VXI
Selution
Q) Lohen haaing ds a e maDCUruum at
220V
3-82 A
ha usiatanea otalactric ian is
R V 2 2 0 54.L0 -
382
And
b)wham hantng/is at iminimum vote,
10N
Resiatania oelatbic iaon i
ww.a R'=_iii=226 V 1315.
Eocampla2u!: 100.J ohatis padwad each second
in a usistante fiud ta potential dileu
w atnn8 Ihe usistun.
Solubion H l00 J,
R1,t-1s, N=)
IRt
JV - J25SA
2

23. Ths, thu patential dipuau atvass be
resistan, V is
V I 1R
5A X
4N
20V
Ths, the patantial dillwne athos tha hunten
i 20
&xanple1.1dn alutnic bulbis tonntad to a
220V
QonoatR The tuuwt i b. 50 A. What is the
pae th aulb?
dsukion PVL
120 VX 0.50A
Eotampla 1. n alactric suluigoatm satad 0oLopeutes
8Janlda Ohat jaho tast u nag
spaata it on 30 days at s. 3-00 pi Rh
Aautibn berdakal nng Janaurud by tho uiqwuaten
303daus oaula be H00 x 8.0 hau d0
96 RNh
huss, tha tast n to ope>uate the ud
Acuatu a 30 da 96kloh X Ra 3-00 penkWh
R 288-O0

24. Brautical Applitaion Jaaing akt
Electic unt
latric an
Haaten 1
Toaatn
7 Fuae
Elactic ron

25. Elecdic Pous
I t b tha satoatwhichth aladic aru
is Consumed Jn on aladic wout.
Jwdt.
- VI
= RI
R
amumeio unit oanw i kWh
JRwh lboo X 3600
3.4 X 10o J