Power factor is an important parameter for the calculation of active and reactive power in electrical circuit. It has significance only for AC circuit. For DC circuit, it is not considered for power calculation.Its value is unity for DC circuit and may vary in between...

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May 15, 2018 admin
AC Circuit
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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...

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May 12, 2018 admin
AC Circuit
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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...

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May 11, 2018 admin
AC Circuit
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Active Power: Active power is the real power consumed in an electrical circuit. It is the useful power which can be converted into other form of energy like heat energy in heater, light energy in bulb etc. It is also known as true or real...

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May 10, 2018 admin
AC Circuit
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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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