Wednesday, March 6, 2024

Why Does A High Voltage Wire Make A Noise?


As you know, high voltage lines consist of 2 wires that pass current. These wires create a magnetic field on top of each other, and these magnetic fields cause a magnetic force to act on the wires. Since the current passing is alternating, that is, it is variable, this force also changes constantly with the current. This variable force causes the wires to oscillate. Here is the buzz we hear from the oscillation of the strings.

It is based on alternating current. Alternating current varies according to the sine function (sine wave). So the main reason for this is the famous trigonometric function in mathematics, the sine function.

I call it sine sound.

i=imax.sin(ωt).�=����.sin⁡(ω�).

sound extractor devices work with different types of current. however, each sound has its own current wave. For example, the headphones you listen to music generate current waves according to the type of music and this electric current turns into sound. We often call it a loudspeaker. Let the function of the electric current of a music be expressed as M(x)�(�). Suppose there is a dam that generates electricity according to the function of this music. According to this assumption, high voltage lines will also make the sounds of that music. so strange noises would come from the electric poles. we would probably hear the electric poles singing.

In that case, if we run a speaker directly with alternating current, zzzzzz or rrrrrrr sounds will come from this speaker. This is the sound of the sine function. On the other hand, if we operate this speaker with battery, we will hear sssss sound or space sound. We know that batteries produce a straight/constant current. I am not a physicist and have not experimented with this. I just made these comments by taking advantage of the power of mathematics. Maybe i'm wrong, but I'll test this at home.


As seen in the image, you see electrical current waves of any music. Now how do we find the function that represents this? If we use the Newton interpolation method, we will not be very successful. Maybe we can do some approximation to this function. These waves you see are not regular like alternating current and constant current.

There is also the aspect of this that has to do with the light intensity. Take a good look at the lamp you see in your home. you will see the sine function there too.

I was very small indeed. I saw a lamp connected to the speaker and the power of the lamp was blinking according to the intensity of the sound. The lamp glowed brighter when the man shouted into the microphone, and turned off when the man was silent. What was that mysterious thing?That's when i realized that strange things happen in life.

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