Solved Examples of Admittance
Q. For the admittance value of 3+j4 , what will be the impedance of the circuit?
Since impedance(Z)= 1/admittance(Y)
Z=1/(3+j4)
i.e.
Z=(3-4j)/(32+42)
∴ Z=(3-4j)/25
Q. Find the phase angle of current if admittance of the series circuit is 5+13j.
For a series circuit with admittance Y=G+jB
tan(Φ)=B/G
On comparing
G=5mho B=13mho
So,tan(Φ)=13/5
∴ Φ=arctan(13/5)
Admittance
In general, when talking about electrical circuits we only refer to certain properties like voltage developed and resistance offered by circuit. Resistance can be defined as the opposition offered by the electrical circuit for current to flow. In this article, we will introduce a new property known as the admittance of the circuit. It is often taken into account when we want to know how easily the circuit allows current to flow through it. It is basically a term contrary to resistance. In this article, we will discuss what is admittance along with its derivation from the impedance. We will also learn about the admittance triangle and how admittance varies in series and parallel combination circuits. We will also list the components of admittance and provide a comparison between admittance and impedance. This information when put to use can be applied at various places which have been discussed through the applications. We will conclude the article with some points and list some frequently asked questions for reference.
Table of Content
- Derivation
- Components
- Admittance Triangle
- Admittance of a Series Circuit
- Admittance of a Parallel Circuit
- Admittance Vs Impedance
- Applications
- Solved Examples