Physics > Alternating Current > 3.0 Some important terms
Alternating Current
1.0 Introduction
2.0 Alternating current and alternating voltage
2.1 Instantaneous current and voltage
2.2 Mean or average current and voltage
2.3 Root mean square current and voltage
2.4 Form factor
3.0 Some important terms
4.0 Circuit element in AC circuit
4.1 Pure resistor circuit
4.2 Pure inductor circuit
4.3 Pure capacitor circuit
4.4 Series $L-R$ circuit
4.5 Series $C-R$ circuit
4.6 Series $L-C-R$ circuit
4.7 Resonance series $L-C-R$ circuit
4.8 Quality factor
4.9 Summary
5.0 Power in AC circuit
3.3 Susceptance
2.2 Mean or average current and voltage
2.3 Root mean square current and voltage
2.4 Form factor
4.2 Pure inductor circuit
4.3 Pure capacitor circuit
4.4 Series $L-R$ circuit
4.5 Series $C-R$ circuit
4.6 Series $L-C-R$ circuit
4.7 Resonance series $L-C-R$ circuit
4.8 Quality factor
4.9 Summary
The reciprocal of the reactance of an A.C. circuit is known as susceptance.
It is represented by $S$.
$${\text{Susceptance}} = \frac{1}{{{\text{Reactance}}}}$$
The unit of susceptance is ${\left( {ohm} \right)^{ - 1}}$ or Siemens.
Note:
* $${\text{Inductive susceptance}} = \frac{1}{{{\text{Inductive reactance}}}}$$ or $${S_L} = \frac{1}{{{X_L}}} = \frac{1}{{\omega L}}$$
* $${\text{Capacitive susceptance}} = \frac{1}{{{\text{Capacitive reactance}}}}$$ or $${S_C} = \frac{1}{{{X_C}}} = \frac{1}{{\frac{1}{{\omega C}}}} = \omega C$$
