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in a series LCR circuit connected to a variable frequency 2000hz source L=5H, C=80uF and R=40ohm. what is the impedance of the circuit at resonance?

in a series LCR circuit connected to a variable frequency 2000hz source L=5H, C=80uF and R=40ohm. what is the impedance of the circuit at resonance?
 

Grade:10

2 Answers

Vikas TU
14149 Points
3 years ago
Hiii 
At Resonance XL = Xc 
Total impedance at resonance condition is given by :
X = sqrt(R^2 +(XL –  Xc )2 )
So, total impedance will be equal to its resistance only 
so, ans is 40 ohm.
 
Khimraj
3007 Points
3 years ago
Total impedance at resonance = R = 40
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