Page 129 - Electrician -1st Year - TT

Juû\ùVôuß LYokÕ CÝdÏm. JúW YûLj
§ûN LôhÓm Ti× (Directive property):
LôkRjûR ¡ûP¨ûX«p ùRôeL®hPôp
CÕ YPdÏ Utßm ùRtÏ §ûNûV úSôd¡
Ruû] ¨ßj§d ùLôs¡\Õ. (Fig 4)
çiÓRp Ti× (Induction property): LôkRm
Ru AÚ¡p ûYdLlThP LôkRl
ùTôÚhLû[ çiÓRp (Induction) LôWQUôL
LôkRUôdÏm. (Fig 5)
LôkRj RuûUûV CZdÏm Ti×
(Demagnetising property): LôkRUô]Õ
ùYlTlTÓjÕRp, Ñj§Vp ùLôiÓ A¥jRp
úTôu\ LôWQeL[ôp LôkRj RuûUûV
CZd¡\Õ.
LôkR YXõûUlTi× (Property of strength):
GpXô LôkReLÞm CWiÓ ÕÚYeLû[d
ùLôiPûY. LôkRj§u CWiÓ ÕÚYeLÞm
NUUô] LôkR YXõûU ùLôiPûY.
ØÝûU ¨ûXlTi× (Saturation property):
A§L YXõûU ùLôiP LôkRjûR úUÛm
LôkR Ht\m ùNnRôp AÕ HtL]úY ØÝ
YXõûU ùTtß Es[Rôp úUtùLôiÓm
LôkR Ht\jûR Htßd ùLôs[ôÕ.
LYÚm Utßm ®XdÏm Ti× (Property of
attraction and repulsion): G§¬]j ÕÚYeLs
(ARôYÕ YPdÏ Utßm ùRtÏ ÕÚYeLs)
TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.4.38
ÕÚYeLs (ARôYÕ YPdÏ / YPdÏ Utßm
ùRtÏ/ ùRtÏ) Ju±p CÚkÕ Utù\ôuß
®X¡f ùNpÛm. (Figs 6 Utßm 7).
Fig 6
Fig 7
LôkReL°u Y¥YeLs (Shapes of magnets):
LôkReLs TpúYß Y¥YeL°p
¡ûPd¡u\]. AûYL°u LôkRl×Xm
ÕÚYeL°p ùN±îhPlThÓs[Õ.
ùTôÕYô] Y¥eLs ¸úZ Y¬ûNlTÓjRl
ThÓs[].
– Tôo Y¥Y LôkRm (Bar magnet)
– ϧûWdLôp Y¥Yd LôkRm (Horseshoe
magnet)
– ¬e Y¥Y LôkRm (Ring magnet)
– EÚû[ Y¥Y LôkRm (Cylindrical type magnet)
– £\lTôL Y¥YûUdLlThP LôkRm
(Specially shaped magnets)
LôkRUVUôdÏRXõu Øû\Ls (Methods of
magnetizing) : JÚ ùTôÚû[ LôkRUôdÏYRtÏ
êuß ®R Øû\Ls Es[].
– ùRôÓRp Øû\ (Touch method)
– ªuNôW Øû\ (By means of electric current)
– çiÓRp Øû\ (Induction method)
ùRôÓRp Øû\ (Touch method): CkR Øû\
úUÛm êuß ©¬ÜL[ôL ©¬dLlTÓ¡u\].
– Jtû\ ùRôÓRp Øû\
– CWhûP ùRôÓRp Øû\
Jtû\j ùRôÓRp Øû\ (Single touch method):
Jtû\j ùRôÓRp Øû\«p LôkR
UVUôdLlTP úYi¥V G@Ïj Õi¥u ÁÕ
LôkRj§u HRôYÕ JÚ ÕÚYjûR ûYjÕ
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