Inertial quality of sine wave

For an Electrical engineer can’t avoid the sine wave because whatever they are studying which always connected to the sine wave.

For example, when we are studying about power generation, the generated electricity is sinusoidal.When we move to signal processing and analysis, all signals are represented as the sum of sine function (Fourier series).Then we get to communication systems, there sine is considered as fundamental signal!

Have you ever thought about why sine wave is a fundamental wave???

Some might know this reason, sine wave can be produce In lesser cost, but that is not the only reason, to sine wave considered as fundamental.

Sine wave has a unique quality compared to other forms of waves.

Before that, let me explain some basics of electrical circuit. For an electrical circuit, contains components like resistor, capacitor, and inductor. All electric circuits comprise these three major items. In an electric circuit Capacitor means, which will function as an integrator. And the Inductor means which will work as a differentiator.

Coming back to sine wave, when a sine wave passing through the capacitor, which will be integrated. IE a sine wave is passing through capacitor which will be converted as a cosine signal.in other words which will be changed as sine wave with with a 90 degree phase shift.If sine wave is passing through an inductive circuit which will be differentiated and  output is an inverted cosine signal. 

For a square wave when it passes through capacitor which will be converted as triangular wave .when we observe all the waves and behavior in electric circuits its loss its basic nature and changed to different form.but In both cases, sine wave keeps its sinusoidal nature. In my opinion This is the major reason for sine is considered as fundamental wave.

In our way of life, we might pass through up and downs. Sine teach us to never lose our qualities even we are going through the obstructions and struggles! 

Be like sine wave!

Always be like sine wave!