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P-N junction semiconductor diode

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P-N junction semiconductor diode What is a P-N junction semiconductor diode? A P-N junction diode is a two-terminal or two-electrode semiconductor device, which allows the electric current in only one direction while blocking the electric current in the opposite or reverse direction. If the diode is forward-biased, it allows the electric current to flow. On the other hand, if the diode is reverse-biased, it blocks the electric current flow. A P-N junction semiconductor diode is also called a p-n junction semiconductor device. In n-type semiconductors, free electrons are the majority charge carriers whereas in p-type semiconductors, holes are the majority charge carriers. When the n-type semiconductor is joined with the p-type semiconductor, a P-N junction is formed. The P-N junction, which is formed when the p-type and n-type semiconductors are joined, is called a p-n junction diode. The p-n junction diode is made from the semiconductor materials such as silicon, germanium, and gallium
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Analog Electronics Questions

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 Analog Electronics Questions Derive the expression for the CE short circuit current gain Ai as a function of frequency using the Hybrid - π model. [10] Draw the circuit of a two-stage R-C coupled transistor amplifier and explain its working of it. [4]  Discuss briefly the Cascode amplifier. [4]  What is square law distortion? What is its effect in FET amplifiers? [4]  Draw the small-signal high-frequency circuit of a common source amplifier and derive the expression for voltage gain. [6]  Explain with the help of mathematical expressions, how the negative feedback in amplifiers increases amplifier bandwidth and reduces distortion in amplifiers. [5] What are the factors that affect the frequency stability of an oscillator? How frequency stability can be improved in oscillators. [5] Derive the equation for maximum efficiency of a class A transformer coupled amplifier. [5] What is Bias? What is the need for biasing? [2]  How does the input impedance increases due to darlington connection
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Semiconductor Diodes and its Types

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Semiconductor Diodes and their Types Semiconductor Diodes Introduction Semiconductor diodes – A diode made of semiconductor components, usually silicon. The cathode, which is negatively charged and has an excess of electrons, is placed adjacent to the anode, which has an inherently positive charge, carrying an excess of holes. A diode is made up of Silicon or Germanium having some impurities that are Pentavalent impurities for the N-type and trivalent impurities for the P-type semiconductor. Di means two and Ode mean electrodes. Hence Diode is a two-electrode device. These two electrodes are called Anode and Cathode. As it is a PN junction, ‘P” is referred to as Anode (having holes or +Ve charges) and N is referred to as the Cathode (having electrons or –Ve charges). The diagram for PN junction Diode is given as. When a Diode is forward biased it offers very low resistance and hence conduction will take place and it will act as a conductor. When a Diode is reversed biased i.e whe
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