Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain physically how a p-n junction functions as a rectifier.
Ans: When a P-N junction diode is forward-biased and applied voltage is increased from zero, hardly any current flows through the device in beginning. It is so as external voltage is being opposed by the internal barrier voltage VB whose value is 0.7 V
For Silicon and 0.3 V for Ge. As soon as VB is neutralized, current through diode increases rapidly with increasing applied battery voltage. So, in forward bias condition, P-N junction diode behaves just like a closed switch. When a P-N junction diode is reverse biased, majority carriers are blocked and only a small current (because of minority carriers) flows through the diode. It's of the order of Nano amperes (nA) for Si and microamperes (µA) for Ge. For all practical purposes, this current is almost negligible. So, in Reverse bias condition, P-N junction diode behaves like an open switch. So, above discussion shows that the P-N junction functions as a rectifier.
Ultraviolet catastrophe: A shortcoming of the Rayleigh-Jeans formula, that tries to explain the radiancy of a blackbody at several frequencies of the electromagnetic spectrum.
Define about the Bell Jar? A vessel with a small hole of diameter d in it is delegate inside a high-vacuum chamber. The pressure is so low that the signify free path λ>> d.
What is the difference between unit cell and primitive cell In primitive cell, number of atoms per unit cell is one while if number of atoms per unit cell is greater than one i
AC Output Resistance in Common Base Configuration Ratio of change in collector-base voltage ( ? V CB ) to resulting change in collector current ( ? I C ) at
chemistry in action - Detergents A result of high dissolving power, the logically happening water all time consists of dissolved matters, majorly ionic substances. Hard water h
Regard as an electron and a proton at an instant in time to be at a separation of 5 cm from each other. Presume the pair to be totally isolated from its surroundings in the vacuum
A ball moving with speed v collides with a horizontal smooth surface at an angle ? with normal to surface in the figure. If coefficient of restitution is ‘e’ , then find VELOCITY a
Match the name of every item given in the list below to the label pointing to that item in the diagram. Answer: I guess the only point I desire to stress here is that
Q. Tritium has a half life period of 12.5 years. What fraction of the sample will be left over after 25 years? HLP = 12.5 years Number of HLPs in 25 years = 25 / 12.5 =2
Give one advantage of a scanning electron microscope over a transmission electron microscope? The SEM has become more popular than the TEM as it can make images of high resolut
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd