Page 107 - Electrician -1st Year - TT

BÏm Guß Eߧ ùNnVXôm. Fig 1þûV C§p R GuTÕ TdL CûQl× ªuÑt±u
Fig 2-p LôhPlThPÕ úTôÛm ùUôjR ªuRûP Km-p
YûWVlTPXôm.
V GuTÕ Nodëh¥tÏ YZeLlTÓm
LQd¸Ó Øû\«p CRû] CqYôß úYôphúPw êXUôÏm -úYôph¥p
úLôoûYVôL (expressed) AûUdLXôm.
I GuTÕ TdL CûQl× ªuÑt±u ùUôjR
V = V = V = V ªuú]ôhPm -Bm©V¬p
1 2 3
TdL CûQl©p Es[ ªuú]ôhPm HtL]úY SUdÏ CÕ ùR¬Ùm,
(Current in parallel circuit) : UßT¥Ùm (Fig 2)-p
I = I + I + I
LôhPlThÓs[§u A¥lTûPVôLd 1 2 3
ùLôiÓ, Km-u ®§ûVl TVuTÓj§ V V V V
ARôYÕ JqùYôÚ ¡û[«p ùNpÛm ApXÕ = = + +
R R1 R2 R3
LWih¥u U§lûT LiP±VXôm. ARôYÕ,
úUÛm úUúXÙs[ NUuTôhûP V Bp
V1 V YÏdL
ªuRûP R -p ùNpÛm LWih = I = =
1 1
R1 R1
1 1 1 1
V 2 V CRû] = R = R + R + R G] GÝRXôm.
ªuRûP R -p ùNpÛm LWih = I = = 1 2 3
2 2
R 2 R 2
úUúX á±Ùs[ NUuTôÓL°p ùRuTÓY]
V 3 V ARôYÕ, ùUôjRªuRûP«u RûX¸r (re-
ªuRûP R -p ùNpÛm LWih = I = =
3 3
R 3 R 3 1
ARôYÕ V = V = V ciprocals) ( ) B]Õ, JqùYôÚ R²
1 2 3 R
Fig 2-p LôhPlThÓs[§u A¥lTûP«p ªuRûPL°u RûX¸rL°u U§l×dÏ
ªuÑtßd ¡û[L°p ùNpÛm NUUô]RôÏm.
ªuú]ôhPeLs I , I Utßm I B¡VûYLs
1 2 3 TdL CûQl× ªuÑt±u TVuTôÓLs
Øû\úV ¡û[L°u ªuRûPLs R , R
1 2 (Applications of parallel circuits) : CkR YûL
Utßm R Y¯VôLf ùNp¡u\].
3 CûQl× ÅhÓ ETúVôLj§tÏ TX úTWXp
úTWXp Nodëh¥u ùUôjR ªuú]ôhPm NodëhL[ôLl ©¬dLlThÓl TVuTÓjRl
(I) B]Õ JqùYôÚ R²d ¡û[f ÑtßL°p TÓ¡\Õ.
ùNpÛm LWihL°u áhÓjùRôûLÏf
JÚ Rô²Ve¡ ªu AûUl× Øû\«p úTWXp
NUUôÏm.
(An automobile electric system) NodëhLs,
LQd¸Ó Øû\«p, CRû] CqYôß úLôûY ®[dÏLÞdÏm, aôou, úUôhPôo, úW¥úVô
(expressed ) VôL ϱl©PXôm. ØRXõVûYLÞdLôLl TVuTÓ¡u\]. CkR
I = I + I +I + .... I ETLWQeLs JqùYôußm Ut\ûYLÞPu
1 2 3 n
úNWôUp R²jR²VôL CVeÏ¡\Õ.
TdL CûQl©p Es[ ªuRûP (Resis-
tance in parallel circuit) : TdL CûQl× R²Vô] ùPXõ®Nu NodëhLs ªLÜm
ªuÑt±p JqùYôÚ ¡û[ ªuÑt±Ûs[ L¥]Uô] £dLXô] NodëhLs BÏm.
ªuRûPL[ôp AûYL°p ùNpÛm CÚkRúTô§Ûm CkR L¥]Uô] NodëhLs
LWih¥tÏ ùLôÓdLd á¥V ùU«u TYo êXdáß (main power source)ÜPu
G§ol×jRuûUL°u ùTÚdLtTXuL°u CûQdLlTh¥ÚdÏm. AR]ôp Rôu
áhÓjùRôûLVô]Õ ¡û[fÑtßL°p ¥.®«u JXõ AûXY¬ûNl Tϧ UhÓm
¡ûPdÏm úYôphúP´tÏ NUUôÏm TdL (audio section ) J°dLôh£TPm (video picture)
CûQl× Ñt±u ùUôjR ªuRûPûV R Km ùR¬VôUXõÚdÏm ùTôÝÕáP CVe¡d
G]d LÚ§dùLôs[Üm. ùLôi¥Úd¡\Õ.
Km-u ®§lT¥, CqYôß GÝRXôm.

V V
R = Km (ApXÕ) I = = Bm©Vo
I R

TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.3.29 & 30 87