Page 119 - Electrician -1st Year - TT
P. 119
ùR¬VôR ùW³vPuv R B]Õ A & B Utßm LQd¡XPeLô U§l× (infinite) YXÕ
x
ùPoª]pLÞdÏ TdL CûQl× NodëhûP ûLl×\j§Ûm (ØÝ A[Ü ªuú]ôhPm)
HtTÓjÕm ®RUôL úTWXXôL ÁhPÚPu Uôod ùNnVlTh¥ÚlTûR Fig 4-p
CûQdLlTh¥ÚdÏm. úThP¬ Nôow BÏm LôhPlThÓs[Õ. CûPlThP ªuRûP
úTôÕ HtTÓm ªu]ÝjRd L£ûY (draining) (intermediate resistance) U§lûT A[dÏm úTôÕ,
R®olTRtLôL ‘S’ Gu\ ×v ThPu YûL ùNpÛm LWih B]Õ ÁhP¬u
v©¬eLôp úXôÓ ùNnVlThP Ñ®hÑ ùW³vhPu³tÏm U§l× ùR¬VôR
CûQdLlTh¥ÚdÏm. ªuRûPdÏm G§o®¡Rj§p (inversely
proportional) ©¬kÕ ùNpÛm.
úYûX ùNnÙm Øû\ (Working) : A & B Gu\
Øû]Lû[ JußPu Juß CûQdLlTÓm Fig 4
ùTôÝÕ (shorted) (ARôYÕ U§l× ùR¬VôR
ªuRûP R = ‘0’ Km) ÁhP¬p LWihÓm ‘0’
x
BÏm. úYß®RUôL ClT¥Ùm ®[dLXôm.
U§l× ùR¬VôR ªuRûP R = (A & B)
x
Øû]Lû[ §\kR ¨ûX«p (open)
ûYj§ÚdÏm ùTôÝÕ) LWih B]Õ ÁhPo ARtÏ Ht\ôtúTôp Tô«uhPWô]Õ
Y¯VôL UhÓúU ùNpÛm, úUÛm R -I ªLf CûPlThP ¨ûXûV (intermediate position)
1
N¬Vô] U§l©p ùR¬Ü ùNn§ÚkRôp AûPÙm.
ÁhP¬u Tô«uhPo B]Õ ØÝ A[Ü TVuTôÓ (Use): CqYûLVô] Km
A[Åh¥p (full scale) Lôh¥ ¨tÏm. ÁhPWô]Õ Ï±lTôL Ïû\Yô] A[Ü
TdL CûQl× YûL Km ÁhP¬p (shunt type ªuRûP (low value resistors)«u U§lûT
ohmmeter) ‘0’ (zero) ϱÂÓ B]Õ vúLXõu A[dLl TVuTÓ¡\Õ
CPÕ ûLl×\j§Ûm (LWih CpXôRRôp)
TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.3.33 99
