Page 138 - Electrician -1st Year - TT

TYo (Power) T«t£ 1.4.43 & 44 dLô] ùRôPo× LÚj§Vp
GXdh¬μVu (Electrician) þ LôkR®Vp Utßm ùLlTô£hPo (Magnetism
and Capacitors)

ùLlTô£hPoLs þ YûLLs þ CVdLm þ ÏÝYôL CûQjRp þ TVuLs
(Capacitors - types - functions , grouping and uses)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• ùLlTô£hP¬u LhPûUl× Utßm ªuú]tûT ®Y¬jRp
• ùLlTô£Puv Tt± ®[dÏRp
Scan the QR Code to view
• ùLlTô£hP¬u YûLLs Utßm TVuTôÓLû[ áßRp. the video for this exercise

ùLlTô£hPo (Capacitor): ùTôPu£Vp ùLlTô£hPuv AXÏ (Unit of capacitance):
Bt\ûX GXdhúWô vúP¥d @ÀpÓ (electro ùLlTô£hPuv³u A¥lTûP AXÏ
static field) Y¥Yj§p úNªdÏm RuûUdLôL @TôWh (Farad) BÏm. CÕ 'F' Gu\ GÝjRôp
Y¥YûUdLlThP JÚ NôR]jûR ϱdLlTÓ¡\Õ. JÚ @TôWh GuTÕ 1
ùLlTô£hPo Gu¡ú\ôm. úYôph ªu]ÝjRj§p ùLlTô£hP¬p 1
áÛm ªuú]ôhPjûR úRd¡ ûYdÏm
AûUl× (Construction): ùLlTô£hPo JÚ
ùLlTô£hP¬u §\u BÏm. úUÛm @TôWh
ªu NôR]UôÏm. C§p CWiÓ TdL CûQ
GuTÕ áÛm/ úYôph (C/V) BÏm.
LPj§ RLÓLs ªu LPjRôl ùTôÚ[ôp
©¬dLlThÓ CûQl× Lm©Ls êXm @TôWh (Farad): @TôWh GuTÕ
RLÓL°p CûQdLlTh¥ÚdÏm. (Fig 1) ùLlTô£hPuv³u (C) AXLôÏm. Utßm
áÛm GuTÕ ªuòhPm (charge) (Q)þu
AXLôÏm. úYôph GuTÕ ªu]Ýjj§u
AXLôÏm. G]úY, ùLlTô£hPuv
LQd¸hÓ ®[dLj§u T¥ ¸rLiP
Øû\«p LQd¡PlTÓ¡\Õ.
Q
= C
V

ùLlTô£h¥q ¬VôdhPuv (Capacitive
reactance) : ªuRûP Utßm CuPdPoLû[
ùNVpTôÓ (Function): ùLlTô£hP¬p
úTôuú\ ùLlTô£hPÚm AC ªuú]ôhPm
úNªdLlTÓm ªuú]t\Uô]Õ, ARu CÚ
TônYûR RÓjÕ ¨ßjÕ¡\Õ. JÚ
LPj§ RLÓLÞd¡ûP«p EÚYôÏm. ¨ûX
ùLlTô£hPo ªuú]ôhPjûR G§odÏm
ªu²Vp (electrostatic) ×X Y¥®p CÚdÏm.
RuûUdÏ ùLlTô£h¥q ¬VôdPuv
ªuLôl×l ùTôÚ°u §\àdúLt\ôt úTôp,
(capacitive reactance) Guß AûZdLlTÓ¡\Õ.
ªuú]t\m úNªdLlTÓYúRô, §¬×
CÕ X Gu\ GÝjRôp ϱdLlTÓ¡\Õ.
HtTÓYúRô AûUÙm. ªuNd§ C
FhPlTÓ¡\ úTôÕm ¿iP SôhLÞdÏ ùLlTô£hPu^û^ ¨oQ«dÏm
LôW¦Ls (Factors determining capacitance):
RdL ûYdLlTÓm. ARôYÕ, ªuRûPúVô
LPj§úVô ùLôiÓ FhP CZl× ùNnÙm ùLlTô£hP¬u ùLlTô£hPuv ¸rLiP
YûW CÚdÏm. CRu AXÏ áXm Gußm SôuÏ LôW¦Lû[ ùTôÚjÕ AûUÙm.
ARû] `C' Gu\ Be¡X GÝj§Ûm – RLh¥u TWlT[Ü (C )
ϱdLlTÓ¡\Õ.
– RLÓLÞd¡ûPúVVô] çWm (C d)
ùLlTô£hPuv (Capacitance):
– ªuLPjRôl ùTôÚ°u YûL (Type of
ªuú]ôhPjûR Nd§VôL úNªjÕ ûYdÏm
dielectric material)
Bt\p ùLlTô£hPuv Guß AûZdLl
TÓ¡\Õ. CÕ 'C' Gu\ Be¡X GÝj§p – ùYlT¨ûX (Temperature)
ϱdLlTÓ¡\Õ.
– RLÓL°u ªuRûP (Resistance of the plates)

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