alleryStart learning →Impedance of series RLC circuit:
AJust X
BZ = √(R² + (X_L - X_C)²) ; phase angle tan φ = (X_L - X_C)/R
CR only
DR + L + C
Answer & Solution
Correct answer: B. Z = √(R² + (X_L - X_C)²) ; phase angle tan φ = (X_L - X_C)/R
**Series RLC:** Z = R + j(X_L - X_C).
|Z| = √(R² + (X_L - X_C)²).
**Phase:** arctan((X_L - X_C)/R).
If X_L > X_C: inductive (V leads I).
If X_C > X_L: capacitive.
If X_L = X_C: resonance.
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