alleryResonance in series LCR circuit occurs when:
AX_L + X_C = R
BX_L = X_C → ω = 1/sqrt(LC)
CR = 0
DL = C
Answer & Solution
Correct answer: B. X_L = X_C → ω = 1/sqrt(LC)
At resonance, X_L = ωL = 1/(ωC) = X_C.
So ω₀ = 1/sqrt(LC).
Z = R (minimum), current maximum, power factor = 1.
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