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!
Q. Explain working of Bipolar junction transistors?
The family of bipolar junction transistors has two members: the npn BJT and the pnp BJT. Both types contain semiconductor junctions which operate with bipolar internal currents consisting of holes and electrons. These are illustrated in Figure along with their circuit symbols.
The emitter in the circuit symbol is identi?ed by the lead having the arrowhead. The arrow points in the direction of conventional emitter current ?ow when the base-emitter junction is forward biased. A transistor can operate in three modes: cutoff, saturation, and active. In the active mode, for an npn BJT, the base-emitter junction (BEJ) is forward-biased by a voltage vBE, while the collector-base junction (CBJ) is reverse-biased by a voltage vCB. Thus for an npn BJT, as shown in Figure (a), iB and iC are positive quantities such that iB + iC = iE. For a pnp BJT on the other hand, in the active region, the base-emitter and collector-base voltages are negative, and currents iB, iC, and iE are all negative quantities such that iE = iB + iC, that is to say, the bias voltages as well as current directions are reversed compared to those of an npn BJT.
Hey Dear i have a hw in MATLAB by applying Finite Element Method there(Electromagnetic) and i need your help with it. please take alook at the question and let me know if you can h
principle of resistive feedback circuit change when the square wave and triangular pulse frequencies, the amplitude of the triangle wave
Binary to Hexadecimal Conversion To convert a binary number into hexadecimal divide the number into group of four bits each starting from the least significant bit. Th
Q. Explain working of Ammeter? In order to measure the current through a wire or line of a circuit, an ammeter is connected in series with the line. A practical ammeter can usu
i v characteristics of practical current source
Q. A filter is a network employed to select one range of frequencies while rejecting all other frequencies. A basic building block often used in integrated-circuit filters is shown
what is resolution
Factors Contributing To High Technical Losses Power distribution systems in developing countries have faced a phenomenal and rapid growth within the last two decades. Although
A large induction motor is usually started by applying a reduced voltage across themotor; such a voltage may be obtained from an autotrans- former. A motor is to be started on 50%
Linearize the swing equations around an equilibrium point. Compute the transfer function from the input U to the output !. For which equilibria is the linearizes system stabl
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd