## Working Principle of Transistor

In this post I will focus on the working principle of the Bipolar Junction Transistor assuming that you are already aware of the construction details of the BJT or simply Transistors. The basic operation of the transistor will be described using the pnp transistor. The...

## Analysis of Clamping Circuit

The clamping network is one that clamps a signal to a different DC level. The network contains a capacitor, a diode, and a resistive element, but it can also have an independent DC supply source to introduce an additional shift in voltage level. The magnitude...

## How to Find RMS Value of any Function?

I am writing this post for those who are going to appear for the GATE-2017. If you see the Previous Year Question Papers, you will find that finding RMS for a composite wave or for an arbitrary function is asked frequently. Therefore it is quite...

## Balanced Star to Delta & Delta to Star Conversion

As we know any balanced Star connected system can be completely replaced by an equivalent Delta connected system. This means that a three phase Star connected balanced system having line voltage VL and line current IL can be replaced by an equivalent Delta connected system...

## Star Delta & Delta Star Conversion

Star-Delta and Delta-Star conversion concept is very basic but most important concept for Electrical Engineers. Be it day to day calculation or solving some numerical of competitive exam, we definitely need this conversion. In this post we will be discussing this Star to Delta and...

## Basics of Magnetic Circuit

Magnetic Circuit is defined as the path followed by a Magnetic Flux. Magnetic Flux always has a tendency to follow low Reluctance path. The laws of Magnetic Circuit are quite similar to the Electric Circuit but the terms used in Magnetic Circuit analysis is different....

## Cause of Skin Effect in AC Conductors

The behavior of AC current is different than the behavior of DC current. When DC current flows through a conductor, it get uniformly distributed over the whole cross-section of the conductor but when AC current flows, it has a tendency to flow near the surface...

## Why Capacitor is Generator of Reactive Power while Inductor an Absorber? Understanding Reactive Power

Consider an Inductive circuit and assume the instantaneous voltage be v = VmSinwt Then the current will lag behind the voltage by some angle Ø and the instantaneous current will be as i = ImSin(wt-Ø) Now to understand the concept of Reactive Power, we will...