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...

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February 8, 2018 admin
AC Circuit
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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...

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February 6, 2018 admin
AC Circuit
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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...

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January 14, 2018 admin
AC Circuit
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What is Current? Electric Current is defined as the rate of flow of net charge through the conductor with respect to time. The direction of current is conventionally is in the direction of flow of positive charge. It is the flow of charge per unit...

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November 9, 2017 admin
AC Circuit
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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...

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November 8, 2017 admin
AC Circuit, EM Theory
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Self Inductance or Inductance is defined as the property of a material due to which it opposes the flow of current through it. It is usually denoted by ‘L’ and its SI unit is Henry. How a material possess such property? To understand, let us...

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November 5, 2017 admin
AC Circuit
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When the potential difference between the terminals of two or more inductors are same, it is said that they are connected in parallel. As potential difference or voltage across the terminals are same therefore current flowing through the inductors may or may not be same....

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November 5, 2017 admin
AC Circuit
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Mutual Inductance Mutual inductance is defined as inductance of a circuit caused by mutual coupling with other circuit. Mutual coupling of two coils means that magnetic field produced by one coil is linking / crossing the other coil and vice versa. Mutual Inductance is generally...

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November 5, 2017 admin
AC Circuit
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Magnetization curve or saturation curve is basically the graphical relationship between the magnetic flux density B and magnetic filed intensity H for a given magnetic material. As we know that, B = μ0μrH where μ0 = Permeability of free space = 4πx10-7Tm/A μr = Relative...

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December 5, 2016 admin
AC Circuit
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For understanding the reason, why current through and Inductor lags behind Voltage across the Inductor, we will first go mathematically then we will understand the concept analytically. Let us consider a purely inductive circuit as shown in figure below. As shown in the figure above,...

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November 22, 2016 admin
AC Circuit
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