What colour LED lamp is commonly used for domestic use?
What colour LED lamp is commonly used for domestic use? Correct Answer White
Light Emitting Diode:
- A light-emitting diode (LED) is a semiconductor light source.
- Electroluminescence is the working principle of LED.
- A light-emitting diode emits light when a current flows through it.
- Infrared LEDs are used in remote-control circuits.
- Warm white lighting fixtures are often preferred in living rooms to create a peaceful atmosphere.
- The warm white lights are a good choice to compliment earthy tones and wood furniture.
- White light is obtained by using multiple semiconductors or a layer of light-emitting phosphor on the semiconductor device.
[ alt="26 June 1" src="//storage.googleapis.com/tb-img/production/19/08/26%20June_1.png" style="width: 160px; height: 46px;">
[ alt="SSC JE Electrical 63 20Q Basic Electronics Hindi.docx 5" src="//storage.googleapis.com/tb-img/production/18/11/SSC%20JE%20Electrical_63_20Q_Basic%20Electronics_Hindi.docx_5.PNG" style="width: 495px; height: 297px;">
- A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it
- Light Emitting Diode (LED) works only in the forward bias condition
- When free electrons reach the junction or depletion region, some of the free electrons recombine with the holes in the positive ions
- Free electrons recombine with holes in the depletion region
- In a similar way, holes from the p-side recombine with electrons in the depletion region.
মোঃ আরিফুল ইসলাম
Feb 20, 2025