working principle of pn junction diode with simulation/animation ....etc

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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

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Fabrication of P-N JUNCTION DIODE



BASIC SEMICONDUCTOR
1.1 Semiconductor:-
A semiconductor is a material that has an electrical conductivity between that of a conductor and an insulator. Conductors have very low resistivity (10-2 to 10-8 m) insulator have very high resistivity (>10-2 m), while semiconductors have intermediate values. Semiconductor has resistivity values of order 105 to 100 m.
A semiconductor, such as silicon, has properties somewhere between those of ....etc

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

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

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Josephson Junction


Definition
The 20th century saw many developments in the field of electronics because of basically two reasons

1. The development of transistors, which forms the basics of everything that is electronics.
2. The development of IC, which helped in the fabrication of fast, compact & sophisticated electronic circuits.

In the 21st century we are going to see some radical changes in the approach towards electronics. These are :
1. The replacement of semiconducting devices with superconducting devices.
2. The use of new classic ....etc

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P-N junction diode is the most fundamental and the simplest electronics device. When one side of an intrinsic semiconductor is doped with acceptor i.e, one side is made p-type by doping with n-type material, a p-n junction diode is formed. This is a two terminal device.
The effect described in the previous tutorial is achieved without any external voltage being applied to the actual PN junction resulting in the junction being in a state of equilibrium. However, if we were to make electrical connections at the ends of both the N-type and the P- ....etc

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