Electric Bulb - Definition, Structure, advantages and disadvantage - YB Study

Electric Bulb - Definition, Structure, advantages and disadvantage

Electric Bulb - Definition, Structure, advantages and disadvantage



Electric Bulb Definition structure and advantage and disadvantage


Electric Bulb Definition : 

  • The invention of the light bulb has brought convenience to human beings, and it has been used to this day.
  •  Electric light bulb (or electric ball, tungsten filament lamp), its accurate technical name is incandescent lamp.
  •  The perimeter of the bulb is made of glass, and the filament is held in a vacuum or low pressure inert gas to prevent the filament from oxidizing at high temperatures. 
  • Electric light is a kind of artificial light source, which is a device that converts electrical energy into light energy for indication or lighting. 


Electric Bulb structure: 

Electric Bulb structure

  • Among them, a lamp that emits light after heating a filament usually made of tungsten with an electric current to an incandescent state is called an incandescent lamp. 
  • Incandescent lamps whose bulbs are filled with halogen and inert gases are called halogen lamps. 
  • Electric bulb refers to an electrical lamp consisting of a semitransparent or clear glass housing. it's conjointly called a lightweight bulb. this straightforward device has been used for lighting functions for over a century.
  •  electrical bulb refers to a tool that produces light-weight by applying electricity. 
  • incandescent light-weight bulb sometimes consists of a glass enclosure containing a metal filament. an electrical current passes through the filament, heating it to a temperature that produces light-weight. 
  • once a lightweight bulb connects electrical current flows from one metal contact to a different. 
  • As current passes through the wires and filament, the filament heats up to the purpose wherever it begins to emit photons , that square measure little packets of visible radiation.


History of Electric Bulb:

Thomas Edison (1847-1931) presents the first incandescent lamp suitable for production. Officially, this lamp also had a carbon filament, but there is some uncertainty about it, because Edison and his people experimented with a lot of different materials. It earns him the US patent.


Advantage of Electric Bulb: 

  1. It is very cheap and effordable. 
  2. Installation is easy .
  3. It's available in different sizes and shapes.
  4. It's generate relative high output.
  5. It have longer life than other light sources.


Disadvantage of Electric Bulb:

  1. The biggest problem with light bulb is the sublimation of the filaments .
  2. After some time it turns black.
  3. It break very easily.
  4. Mercury ,a chemical which used in some light bulbs , these chemical highly toxic to humans 
  5. It generate low lumen per watt 
  6. Lamp have short lifetime.

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