self inductance

iz'u 3% &lsYQ baMDV®l ls vki D;k le>rs gS \ d¨&,fQfÓ;aV vkWQ lsYQ baMDV®l d¨ le>kb, A

mÙkj 3% &fo|qr~ ds pkyd dk lsYQ baMDV®l og xq.k gS ftlds }kjk djaV e— ifjorZu g¨us ij ml pkyd e— baM;wLM e.m.f.

mRiUu g¨rk gS A fp= e— ,d Dokby nÓkZbZ xbZ gS A bl Dokby e— N VuZ gS ,oa ble— djaV izokfgr g¨ jgk gS A izR;korhZ /kkjk (alternating current) ds dkj.k Dokby e— mRiUu ¶yDl f] pqEcdh; cy js[kk,¡ mRiUu

djrk gS A bu pqEcdh; cy js[kkv¨a d¨ fp= e— yky jax ls nÓkZ;k x;k gS A ¶yDl&f v©j VuZ&N dk xq.kuQy f N ¶yDl fyd—t dgykrk gS A fo|qr~ /kkjk ds eku e— ifjorZu fd;s tkus ij ¶yDl dh eSXusfVd ykbu vkWQ QkslZ e— Hkh ifjorZu g¨rk gS A QSjkMs ds fu;e ds vuqlkj Dokby e— e.m.f. baM;wLM g¨rk gS A bls lsYQ baM;wLM e.m.f. vFkok e.m.f. vkWQ lsYQ baMDV®l dgrs g®-

Dokby e— djaV ds eku e— c<+¨Ùkjh djus ij baM;wLM e.m.f., djaV d¨ c<+us ls j¨drk gS v©j djaV ds eku dk de fd;s tkus ij baM;wLM e.m.f. djaV d¨ mlh eku ij j[kus dk iz;kl djrk gS- ;g izfØ;k y®t ykW ds vuqlkj g¨rh gS A

lsYQ baMDV®l dk izHkko] djaV ds c<+¨Ùkjh ;k deh g¨us ij gh fn[kkbZ nsxk A pwafd ;g ifjorZu lsYQ baM;wLM e.m.f. ds fojks/k e— g¨rk gS blfy, blds lehdj.k e— ekW;ul lkbu nÓkZ;k tkrk gS A baM;wLM e.m.f. dk lw= fudkyus ds fy,% &

e.m.f. e	=	–N ¼¶yDl ds ifjorZu dh nj½--------o¨YV
e	=	–N ( df / dt )
df / dt	=	¼¶yDl izfr ,fEi;j½¼djaV ds ifjorZu dh nj
df / dt	=	(f/I) (di / dt)
e	=	–N (f/I) (di / dt)
e	=	–L (di / dt)
N (f/I)	=	L- d¨&,fQfÓ;aV vWkQ lsYQ baMDV®l

¶yDl VuZ (Nf) izfr ,fEi;j d¨ d¨&,fQfÓ;aV vkWQ lsYQ baMDV®l dgrs g® A bls L ls iznfÓZr fd;k tkrk gS A blds lw= ds vuqlkj fdlh Dokby e— djaV ds ifjorZu dh nj ,d ,fEi;j g¨ ,oa mle— ,d o¨YV e.m.f. mRiUu g¨rk gS r¨ ml Dokby dk baMDV®l ,d gSujh g¨xk A

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