alleryIn LCR series circuit, at resonance, impedance equals:
AX_L
BX_L + X_C
CX_C
DR only
Answer & Solution
Correct answer: D. R only
**At resonance:** X_L = X_C, so reactive components cancel.
Z = sqrt(R² + 0²) = R. Minimum impedance, maximum current, power factor = 1.
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