The diodes are classified into different types based on their working principles and characteristics. These include Generic diode, Schotty diode, Shockley diode, Constant-current diode, Zener diode, Light emitting diode, Photodiode, Tunnel diode, Varactor, Vacuum tube, Laser diode, PIN diode, Peltier diode, Gunn diode, and so on. On a special case, this article discuss about Gunn diode s working, characteristics and applications.

What is a Gunn Diode?

A Gunn Diode is considered as a type of diode even though it does not contain any typic ....etc

[:=Read Full Message Here=:]

What is the effect of temperature on on p-n junction diode????? ....etc

[:=Read Full Message Here=:]

viva questions on characteristics of led diode

LED Frequently Asked Questions
LED technology continues to develop rapidly as a general light source. As more LED lighting products are ntroduced on the market, what do retailers, energy efficiency advocates, and consumers need to know to make informed buying decisions?

why the LED emitting light but the PN junction diodes are not?
Injection electroluminescence or the light emitting process in a LED occurs when minority carriers recombine with carriers of the opposite type in a diode's band gap. ....etc

[:=Read Full Message Here=:]

vtu viva questions with answers for physics

PHYSICS VIVA QUESTIONS FOR 1ST/2ND SEM:

What is diffraction?
How many types of diffraction are there? Which they are?
Distinguish between Fresnel and Fraun hofer classes of diffraction.
Distinguish between interference and diffraction.
What is grating? Define grating constant.
How do you distinguish between diffraction and refraction?
What is semiconductor?
What is zener diode?
On what factor does the breakdown voltage of zener diode depends?
What is breakdown voltage? Explain.
What is the differenc ....etc

[:=Read Full Message Here=:]

To get full information or details of viva questions pn junction diode with answers please have a look on the pages

http://seminarsprojects.net/Thread-pn-junction-diode-viva-questions

if you again feel trouble on viva questions pn junction diode with answers please reply in that page and ask specific fields in viva questions pn junction diode with answers ....etc

[:=Read Full Message Here=:]

engineering physics lab viva questions with answers

1. What is semi conductor diode laser?
Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of laser radiation?
Laser radiations have high intensity, high coherence, high monochoromat ....etc

[:=Read Full Message Here=:]

P-N JUNCTION DIODE
OBJECTIVE
1. describe the electrical properties of semiconductors and distinguish between p-type and n-type material;
2. explain the formation of a depletion layer at a p-n junction;
3. discuss the flow of current when the p-n junction diode is forward-biased or reverse-biased;
4. discuss the I-V characteristic of the p-n junction diode.
5. use the diode for half-wave rectification;
6. use the bridge rectifier (4 diodes) for full-wave rectification;
7. represent half-wave and full-wave ....etc

[:=Read Full Message Here=:]

physics photo diode characteristics viva question with answers

This light detector is a current-to-voltage converter. The FET input op-amp prevents the loading of the photodiode and the voltage at the output is proportional to the current in the photodiode. So long as the photodiode response to the light is linear, the output voltage is proportional to the light falling on the photodiode. ....etc

[:=Read Full Message Here=:]

Physics Lab Viva Voce Questions and its answers Laser Parameters



1. What is semi conductor diode laser?
Semiconductor diode laser is a specially fabricated pn junction diode. It emits laser light when it is
forward biased.

2. What is LASER?
The term LASER stands for Light Amplification by Stimulated Emission of Radiation. It is a device
which produces a powerful, monochromatic collimated beam of light in which the waves are coherent.

3. What are the characteristic of ....etc

[:=Read Full Message Here=:]

I WANT VIVA QUESTONS AND ITS ANSWERS FOR PN JUNCTION DIODE EXPERIMENT? ....etc

[:=Read Full Message Here=:]