How Bulbs Works

- Dec 07, 2018 -

The bulb is made according to the thermal effect principle of the current.

When the bulb is connected to the rated voltage, the current is heated through the filament to the incandescent state (more than 2000C), thus the heat glows. Thus, at work, the electrical energy is converted into internal and light energy. and a form of energy alone is released by atoms. It is made up of small groups of tiny particles similar to particles that have energy and momentum but no mass. These particles, called visible light, are the most basic units of light. When electrons are excited, atoms release visible light. If you already know how atoms work, you know that electrons are cathode charge particles that walk around the nucleus. The electrons of atoms have different levels of energy, depending on several factors, including their speed and distance from the nucleus. The different energy levels of electrons occupy different orbital functions and orbits. Generally speaking, electrons with large energies are farther away from the nucleus when atoms get or lose energy, they represent changes by electron movement. When something transmits energy to an atom---use heat as an example-electrons can be temporarily pushed into a higher orbit (away from the nucleus). Electrons simply stay in this orbital position for a very short period of time: they are retreated almost immediately back to the nucleus and reach its original orbit. At this point the electrons emit extra energy in the form of photons. The wavelength of luminescence depends on how much energy is released, depending on the orbital position in which the electrons are located. As a result, atoms of the same kind release different types of visible light. In other words, the color of light is determined by the type of atom being excited.


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