Exam (elaborations)
Electrical
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Exam study book A Course in Electrical and Electronic Measurements and Instrumentation of A. K. Sawhney, Puneet Sawhney - ISBN: 9788177001006 (Papers)
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Odß;l%
Capacitors
;djld,slj úoHq;a wdfrdamK .nvd lr
;nd.; yels úoHq;a Wmdx.hla f,i
Odß;%l ye#Èkaúh yel' Odß;%l j¾.
fndfyda m%udKhla mj;sk w;r iudka;r
;yvq Odß;%l ms<sn#oj muKla fuys
idlÉPd flf¾'
Page-01
, O%eùh Odß;%l hkq O%eùh ;djhla mj;sk tkï" Odß;%lfha Ok yd
RK f,i kï lr we;s Odß;%l fõ' fuu Odß;%lj, Ok f,i
y÷kajk w.%h ikakdhl ;yvqjlg;a" RK f,i y÷kajk w.%h
ridhksl øjH fm`. jQ lvodishlg;a iïnkaO lr tA w;r ueog
mdrfõoH øjH f,i ma,diaála" fmd,s;Ska fyda uhsld fhdod
ksmojkq ,efí'
O%eùh;djla rys; tkï" Odß;%lfha w.% Ok yd RK
f,i i`oyka lr fkdue;s Odß;%l ks¾O%eùh Odß;%l
fõ' fuu Odß;%lj, ikakdhl w.% iudka;r ;yvq 02
lg iïnkaO lr we;s w;r" fuys mdrfõoH øjH f,i
f,day Tlaihsv øjH fhdod we;'
úp,H Odß;%l hkq Odß;dj fjkia l< yels Odß;%l fõ' .=jka úÿ,s hka;%j, iy ikaksfõok
WmlrKj, iqir lsÍu i`oyd úp,H Odß;%l nyq,j Ndú; flf¾'
Page-02
, —Odß;%lhl fofl<jr úNj wka;rh 1 W tllska by< ±óug ,ndÈh hq;= wdfrdamK m%udKh
OdrK;dj f,i y÷kajhs'˜
Q_
+
C
Q -wdfrdamK m%udKh
C - OdrKdj
V - úNj wka;rh
_
+
V
Q = CV
1 2
W = 2 CV
W = úoHq;a Yla;sh ^J&
Q = CV 1 3 ka 2 g wdfoaYh" 1 ka V Wla; h'
W = 12 CV
2
2 Q
W = 12 CV
2
4
C =V
1 ka C Wla; h' Q 4 ka 2 g wdfoaYh"
Q
3
= 12 x [ [
V
xV
2
V =C W = 12 CV
2
1 2
W = 2 QV
= 12 x C x Q[ [
C
2
1 Q
W= 2 C
mdroDYH
øjH A c α A wkqf,dau fõ' ε -mdrfõoH;dj ^Fm-1&
;yvq c α 1 m%;sf,dau fõ' A - yrialv j¾.M,h ^m &
2
d
d - ;yvq w;r mr;rh ^m&
cα A
d c - Odrk;dj ^F&
c A
ε c =ε d
d
Page-03
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