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Why a diode cannot emit?

Updated: 12/15/2022
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Q: Why a diode cannot emit?
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What will a Zener diode do at breakdown voltage?

A Zener Diode will continue to show its breakdown characteristics until it gets fried...for example a 5 volt zener will get fried at a breakdown voltage of about 6 volts..this happens because of the large amount of current flowing through the small diode which unfortunately the diode cannot handle.


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.


What is Another name for pn junction?

I cannot think of any, but a pn junction is a part of a diode and has a rectifying properties.


Difference between gunn diode and pin diode?

gunn diode is transfered electron device & PIN diode is semiconductor device


What is a real diode?

whether we know that p-n diode is real diode. But still in case of semeconductor we see then silics is real diode.

Related questions

Does a pn junction diode emit light?

I don't think that the pn junction diode can emit light. Maybe it does, but a 'plastic' that covering the diode makes the light cannot be seen. Besides, you won't see it glow as it connect to the power source, right?


How do you describe an electron that can emit light?

Light Emitting Diode


What is a laser diode?

It's what makes the light !


Does a zener diode acts as a switch?

A zener diode cannot be used as switch.


How do you create a laser beam?

A: By applying to a laser diode pulse of current enough energy to emit photons at a certain frequency.


Which device cannot be used in microwave oscillator?

pn diode


Why you use diode in electronics circuits?

You use a diode in a circuit to make sure that if the power was reversed it would not destroy the components, it can also be used to emit light. Its main use is that it is that positive energy can only enter from one side.


Can a battery be drained by a shorted diode when the ignition key is off?

A battery cannot be drained by a shorted diode when the ignition key is off.


Difference between a diode and a transistor?

diode is a bipolar device and transister is a three terminal device a diode will conduct any time there is a positive voltage from cathode[-] to anode[+] following an exponetial curve of the diode. a transistor can control the same exponential curves by a voltage applied to the base.


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


What will a Zener diode do at breakdown voltage?

A Zener Diode will continue to show its breakdown characteristics until it gets fried...for example a 5 volt zener will get fried at a breakdown voltage of about 6 volts..this happens because of the large amount of current flowing through the small diode which unfortunately the diode cannot handle.


Can switch transient spike damage diode?

A switch transient spike cannot damage a doide.