h Parameter or Hybrid Parameter of Two Port Network

h parameter of two port network is a square matrix of order 2×2. Basically it is a way to represent a two port network. It is also known as hybrid parameter. In this form of representation, voltage of input port and current of the output port is expressed in terms of current of input port … Read more

Z Parameter of Two Port Network

Z parameter is a factor by which input voltage and current & output voltage and current of two port network is related with. For any two port network, input voltage V1 and output voltage V2 can be expressed in terms of input current I1 and output current I2 respectively.  It is also known as open … Read more

Power Triangle

Power Triangle is a right angled triangle whose sides represent the active, reactive and apparent power. Base, Perpendicular and Hypogenous of this right angled triangle denotes the Active, Reactive and Apparent power respectively. This triangle is not a new concept but it is just the schematic representation of phasor diagram of inductive / capacitive load … Read more

Final Value Theorem and Its Application

Final Value Theorem is used for determining the final value of a Laplace domain function F(s). Though we can always transform a time domain function into Laplace domain to apply Final Value Theorem. According to Final Value Theorem, final value of a function i.e. value of function f(t) when t→∞ is given as, Final Value … Read more

Initial Value Theorem

Initial value Theorem is a very useful tool for transient analysis and calculating the initial value of a function f(t). This theorem is often abbreviated as IVT. The limiting value of a function in frequency domain when time tends to zero i.e. initial value can easily be calculated using initial value theorem.  This theorem can … Read more

4 Most Asked Numerical Questions

Balanced Load Numerical

In job interview often interviewer asks some numerical this is quit tricky and easy to answer without going into much calculation. In this post, I am going to discuss 3 most asked numerical questions in job interviews. These 3 questions are picked from my personal experience. Question No. 1 Find the current flowing through the … Read more

What is Eddy Current? – Concept of Electromagnetic Damping

What is Eddy Current? The literal meaning of Eddy is a circular current. Thus the word itself means current having no definite circular loop. Eddy current is defined as the induced current on the surface of conductor in little loops or eddies due to changing magnetic flux. To better understand the concept of eddy current, … Read more