Question
What is the term for the inverse of impedance?
Answer Options
- A) Conductance
- B) Susceptance
- C) Reluctance
- D) Admittance
Correct Answer: D
Explanation
Impedance (Z) is the total opposition to the flow of Alternating Current (AC), encompassing both resistance and reactance, and is measured in ohms. In complex circuit analysis, particularly when components are connected in parallel, it is often easier to work with the reciprocal of impedance.
The reciprocal (or inverse) of impedance is known as Admittance (Y), and it is measured in units of siemens (S). Admittance is composed of two components: conductance (G, the inverse of resistance) and susceptance (B, the inverse of reactance). The relationship is expressed as Y = 1/Z.
This topic was automatically created to facilitate community discussion about this exam question. Feel free to share study tips, memory tricks, or additional explanations!