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What is the value of impedance at resonance?(a) XL(b) XC(c) R(d) 0The question was posed to me during an online interview.The question is from Alternating Current in a Capacitive Circuit topic in division Single Phase Series Circuits of Basic Electrical Engineering

Answer»

The CORRECT option is (c) R

Easy explanation: At RESONANCE, XL=XC

Z^2=R^2+(XL-XC)^2

Z=RSo Z is MINIMUM at resonance.



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