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What is wavelength of light emitting from LED?
It depends on the precise material used to make the LED. Different colors of LED emit different wavelengths.
Does argon and krypton emit colors when an electric current applied?
Krypton emits a smokey white glow
The discovery that stars emit energy across the entire electromagnetic spectrum led to what innovations?
You might be referring to radio astronomy.
What will happen to the light bulb when you switch off the electric circuit?
There will no longer be current to heat the filament which will then cool and no longer emit visible light. While it is cooling it will continue to emit infrared light for a time.
Is emit a noun or a verb?
The word 'emit' is a verb (emit, emits, emitting, emitted), meaning to give off, or send out.Example: The valve will emit steam when the water boils.The noun forms for the verb to emit are emitter and emission.
What is the positive leg of an LED?
The longest leg is the positive leg of any LED.
Why are led legs different in size?
Current will only flow one way through an LED, so it has a positive leg and a negative leg. One of them is longer to signify which is which (longer is negative). The negative side also has a chamfered edge on the LED itself.
Why are LED lights better than incandescent light bulbs?
Light emitting diodes (LEDs) are semiconductors in a transparent epoxy casing. LEDs emit light through electroluminescence — that is, electrical current energizes electrons in the semiconductor material until the electrons emit a photon. Most of the electricity entering an LED is used to make light. It takes just 1.6 volts of DC current to light a single LED.
What are the 2 ways to find out which is the positive leg and which is negative - led?
On an LED, one leg will be shorter than the other. The shorter leg is the negative polarity.
How can you identify a negative leg on a LED?
the negative leg is shorter than the positive leg.
What is wavelength of light emitting from LED?
It depends on the precise material used to make the LED. Different colors of LED emit different wavelengths.
Is plasma TV's better than LED TV's?
LED TV's emit much better quality picture
Forward current of led?
The forward current of an LED is current that goes from the anode of the LED to the cathode (the forward direction).
In an LED how can you work out which leg is negative?
because the negative leg is shorter.
What makes a normal diode a LED?
There are diodes and there are diodes LED are made from arsenic doping to emit photons are never used for other purposes other then LED
Which gases emit colors when an electric current is applied?
All elements emit colors when an electric current is applied.
What an led accepts whether ac or dc voltage?
A: A LED is a diode that emit photons when exited with enough current and/or voltage. it does not care where the source come from. for AC IT WILL WORK PROVIDED A SERIES DIODE IS ADDED that is there to prevent the led from burning up when the reverse voltage exceed the saturation current . these devices have a very low reverse voltage breakdown limitation and if they breakdown usually the power dissipation will be exceeded and blow up.
