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Introduction
This is In this topic we will discuss two effects that will help to realize alternating wave.From these effects we get no result about the parameters of any alternating wave but we realize only the presence of alternating wave.Such effects are not used for any application. But This is an effect we can see from this Experiment.
We can not say that this is a useless application. Maybe invent some application where we can this this type of effects. This effect is only incident lamps or any tungsten lamps.
These are only taken as a theory.However, some of these theories have been used in emergency situations.Let's talk in detail about these effects .
We name two effects. First one is called the flickering effect and another one is the motoring effect in the Incandescent lamp.
Oscilloscope
Oscilloscopes show the Alternating wave amplitude Frequency . We can see Alternating waves with any modifications. What this experiment is about is whether it is possible to identify the alternating wave in any way other than the oscilloscope as a realization of the alternating wave.
Camera Flickering effect
At first we discuss camera flickering effect.This type occurs when a camera is used to take pictures or videos of an alternating current powered device.
What happens in this type of effect is that when a camera can take a picture of an alternating current powered device, some disturbance can be noticed.
This disturbance is seen as some parallel lines are seen rising from the bottom to the top. Which prevents you from taking pictures or videos.This usually happens for frequency and shutter speed.
We know that our standard frequencies depend countrywise. Which is 50 Hz in some countries and some is 60 Hz .Which means a 50 or 60 cycle is made in 1 second.
Which means in one word an alternating current power device is on and off 50 times or 60 times.
Which we cannot understand with the naked eye. But this effect can be seen through any camera. how the camera has made this possible is that the camera has a special setting called shutter speed.
When I take a video, a video is created by adding several images.And the objective of taking pictures with the camera is an alternating power device that is on or off 50 or 60 times in 1 second. Cameras try to take pictures of every millisecond or any instance.
Because the frequency of taking pictures is below the supply frequency. Camera tries to capture every cycle as a picture but it can fail. When adjust the shutter speed at 50 hz or 60 hz then not seen any flickering and none of shown lines below to top .
The camera's image capture then slows down, causing one image to rise above another, and for which we can see parallel lines.
Although some expensive cameras can control the shutter speed, some low priced cameras do not have this type of feature so this effect is a better understanding of all those cameras.Such experiments are done only to perceive the alternating wave.
Motoring effect
Another one is the motoring effect. Physically this effect is a theory of flaming motoring principle. Such effects are clearly understood in Incandescent lamps. We know that the incandescent lamp filament is made of tungsten.And this tungsten is in the form of a coil inside the lamp.
To understand this effect, we need a permanent magnet.When the permanent magnet is held on the glass wall near the lamp coil, a vibration is felt in the tungsten coil inside the lamp just like a dc motor .
A dc motor when it can connect in shunt .when dc supply apply to motor commutator make this dc supply as a Alternating current in rotor and stator still present Direct current . Stator behaves like a permanent magnet . When Alternating current Cuts the stator field a Torque will generate.
Here we assume the tungsten coil is a rotor and the permanent magnet is a stator . Due to the coil not having any Rotating arrangement so the tungsten coil fills with vibrations.
Some more information for vibration. Alternating current coil magnetic fields always change their poles . When the coil induces the North pole then attracts permanent magnet to the south pole. When the coil induces the South pole then attracts a permanent magnet North pole. Coil induced North pole then repelled permanent magnet North pole.Coil induced South pole then repelled permanent magnet South pole. This can happens again and again .
And the level of this vibration depends on the permanent magnetic flux density and flux intensity.Since the relative permeability of glass is much higher. In incident lamps have nitrogen gas for ionization. This nitrogen gas permeability is also included. This vibration is most noticeable when the flux intensity is much higher than that of the permanent magnet. Hence it is called Motoring effect.
Let's discuss why this kind of vibration happens. And to understand this, you must first know the motoring principle. When an alternating field is placed in a static field, those two fields create a motion.
The tungsten coil and the permanent magnet inside the lamp do exactly the same thing since the tungsten coils have a fixed point connected and the tungsten coil has no chance of rotation causing the tungsten coil to create a vibration.
Here we can use electromagnets of DC supply instead of permanent magnets but we cannot use electromagnets of alternating supply in any way. The reason is that this effect is understood only when the coil has a static magnetic field.
This type of effect refers to the perception of alternating waves . This type of effect cannot be used in any application, it is just an experiment. And a theory for identification of Alternating waves. This content conclusion says that prevention of the experiment or what you should need for this experiment observations.
Conclusion
Such experiments should not be done without the necessary materials. Without the materials for the experiment, the purpose of the experiment is not achieved and it can be harmful and have some fire Hazard issues .
Because this Experiment observation takes some time but the incident lamp starts heating . Without any holding arrangement this incident lamp burns your experiment surface. Arrange a proper working place. This experiment is good to go.
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