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Whenthe frequency of the AC source in an LCR circuit equals the resonantfrequency, the reactance of the circuit is zero. Does it mean that thereis no current through the inductor or the capacitor ?

NIKHIL GARG , 14 Years ago
Grade 12
anser 1 Answers
Askiitians_Expert Yagyadutt

Last Activity: 14 Years ago

Hii Nikhil !

 

Yes at the resonance the ...the reactance of Inductor become equal to that of capacitor ...i.e

 

w L = 1/w C   or  w = 1/root(LC)

 

At this point circuit is pure resistive...and current through the circuit is  V/R where V is the source voltage and R is the resistance..

 

But the current through individual L and C is not zero...so voltage accross them become out of phase with each other...thus they get canceled out...

Through the circuit maximum current flow....not zero ..

 

With regards

Yagya

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