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What is the value of impedance at resonance?

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What is the value of impedance at resonance?

(a) XL

(b) XC

(c) R

(d) 0

The 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

1 Answer

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Best answer
The correct option is (c) R

Easy explanation: At resonance, XL=XC

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

Z=R  So Z is minimum at resonance.

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