In resonant condition of LCR circuit,capacitive reactance will b equal to inductive reactance,,,,,,
XL=XC,therefore Z=square root of [(XL-XC)^2+R^2]....clearly impedance will b equal to total resistance.
are bhai complete q to post karo....!!!!!
hiii.....
At x=0,
LHL=lim x->0 (1+ax)^1/x
=e^lim x->0 (ax/x)
=e^a
RHL=lim x->0 (x+c)^(1/3)-1/(x+1)^(1/2)-1
=finite/0
=infinite
RHL must b of the form 0/0.
therefore,c=1
RHL=lim x->0 (x+1)^(1/3)-1/x+1-1/(x+1)^(1/2)-1/x+1-1
=1/3/1/2
=2/3
now,e^a=2/3
hence,a=ln(2/3)
b=2/3
c=1
Hiiiii.....
This happens becos of metal excess defect caused due to anionic vacancies in the crystals of KCl.
When crystals of KCl are heated in presence of K vapour,the K atoms lose an electron to form K+ ions.The Cl- ions move to the surface of the crystal and combine with K+ ions to form KCl.
The released electrons occupy anionic sites after moving into the crystal.Now there is an excess of K in the crystal.The anionic sites occupied by unpaired electrons are called F-centres.They impart violet colour to the crystals of KCl.
