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Why light emitting diodes are good?
LED (light emitting diode) is an electronic component that generates light from the electrons flowing in one direction through it, in an electron circuit, possibly as part of a circuit board. In a circuit the light emission can be a short as a nanosecond. One or more LED's can be used to make light with a minimum of electricity. Modern applications are wide spread including optical sensor activators, calculator displays and automotive tail lights. LED's have come down in price and can last for tens of thousands of hours so have become an economical replacement for other lights in some applications.
What properties of semiconductors make them useful in electronic devices?
Any good conductor is has some power loss while it was conducting if we get superconductor at normal temperature state we can send the electricity for a long distance without power loss there we can minimize the usage of semiconductor
How many simple machines are needed to make a compound machines?
6 simple machines.
What is a ordinary diode?
A diode is an electronic component that will only allow current to flow through it in one direction. It is analogous to the valve in a bicycle tyre, which only lets air in but not out (except when you press the release tab). So if you connect a diode in a simple DC circuit one way around, the circuit will be closed and any devices on the circuit will work. If you connect it the other way around the circuit is open and no current will flow. I presume by 'ordinary diode' you mean a diode that is not a light emitting diode (LED). A LED is just a diode that emits light when current flows through it. Its purpose is to make light. A non-LED diode doesn't emit light. Its purpose is to allow current through a circuit in only one direction. A common use for ordinary diodes is in "rectifying circuits" which convert AC to DC.There are many other uses though.
Why were machines invented?
Machines were invented to make work easier.
Where did Light Emitting Diodes get made?
They make them in many different places.
What is the ayrton light?
It is stage/building light composed of L.E.D's (Light Emitting Diodes) the quantity of them make-up the brightness (accumulative).
Why light emitting diodes are good?
LED (light emitting diode) is an electronic component that generates light from the electrons flowing in one direction through it, in an electron circuit, possibly as part of a circuit board. In a circuit the light emission can be a short as a nanosecond. One or more LED's can be used to make light with a minimum of electricity. Modern applications are wide spread including optical sensor activators, calculator displays and automotive tail lights. LED's have come down in price and can last for tens of thousands of hours so have become an economical replacement for other lights in some applications.
How are light emitting diodes made?
They are made exactly the same way as ordinary semiconductor diodes, except that "binary semiconductors" (i.e. semiconductors made of two or more elements) are used instead of the silicon or germanium that ordinary diodes are made of. First these "binary semiconductors" have a much wider bandgap than silicon does, causing a photon to be generated by each electron dropping into a hole at the device junction. Second that "binary semiconductors" are selected to be transparent to the generated photons, allowing them to escape (both silicon and germanium are opaque to photons). By selecting different elements to make the "binary semiconductors" for the light emitting diodes, different width bandgaps can be produced causing photons of different energy (i.e. color) to be generated. A narrow bandgap produces infrared, a slightly wider bandgap produces red light, and so on up the rainbow until very wide bandgaps produce blue light or even ultraviolet. An ultraviolet light emitting diode can be coated with a phosphor (like a fluorescent light is) to produce white light.
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.
How does an LED emits different colours?
LED stands for "light emitting diode". An LED that is capable of emitting more than one color is actually composed of more than one diode. For example, since diodes only transmit electricity in one direction, it's possible to make a green/orange/red LED with only two leads by connecting a red and green emitting diode to both leads, but "pointing" in opposite ways. When DC current is applied in one direction, the red diode emits red light. When it's applied in the opposite direction, the green diode emits green light. When AC current is applied, both diodes emit light part of the time; if the AC alternates quickly enough, your eye blends the red and green and you perceive it as orange (or amber, or yellow, depending on the relative strength of the light sources). Alternatively, you can make an LED with three diodes (red, green, blue) with distinct leads (one side can be shared, if you want to minimize the number of leads) and depending on the percentage of time voltage is applied to each lead, the diode will appear to emit just about any color you want.
What produces the light to make images on a television?
Cathode Ray TubeLight is produced when electrons emitted from the back of the tube strike the front of the screen,and light up the phosphor coating .PlasmaExcitation of a gas by high voltageLCDCold cathode florescent lamps, placed behind the LCD screenLCD LEDWhite LED's placed behind the LCD screenOLEDLight emitting diodes. Light is generated by passing current across a PN junction of specially doped material, which causes electrons to change valence level and emit light.
What is beam of light emitting from Furnace Mountain Kentucky?
The question is a trap. It is created by blind men of Furnace Mountain. Don't make light emitting from Furnace Mountain. Don't make light emitting from anywhere. Fall into this trap and you will never experience light or dark. The potential of everything will be lost to you. Better to buy flashlights for the blind men of Furnace Mountain. The full winter moon lights the temple steps. Loons question their mates across the valley.
How do you change 2002 Honda odessy clock illumination bulb?
I own a CR-V, but the problem is pretty much universal with the early 2000 Honda vehicles. Make certain that the fuse to the clock circuit is not blown. If it is okay, the problem lies with the clock itself. The clock numerals consist of liquid CRYSTAL diodes (LCD), and not light emitting diodes (LED). When the LCD's 'die' that is the end of them and the entire clock unit must be replaced.
Where do you get LEDs for the window and lock controls for a Chevy Trailblazer?
home depo, sears, wal*mart. If they are indeed LEDs (Light Emitting Diodes) then any radio shack (or similar) will carry them. Make sure they are LEDs and not just 12Vdc incandescent bulbs. They are probably integrated into a circuit board, but can be replaced by using a soldering iron.
What simple machines make up a light switch?
A lever.
What is used in tube lite?
It depends on what color you want the light to be. Neon, Argon, Krypton & others can be combined to make various colors. When energized they starts emitting light.
