Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
q transistor terminals in bjt bjts have three terminals namely base terminal emitter terminal and collector terminal the emitter layer is a source of
q what is the need for bias stabilization in bjtbjt or bi-polar junction transistor is a three terminal two junction semiconductor device and the
q what is meant by thermal runaway explain with reference to a transistorhow is it avoided in circuitsthe collector current of a transistor increases
q advantages and disadvantages of rc coupled amplifieradvantages1 aids excellent frequency responsethe gain is constant over the audio frequency
q show the frequency response of rc coupled amplifier1 at low frequency ieless than 50 hz reactance of cc is going high hence same part of the signal
q what is meant by biasing transistorthe purpose of dc biasing of transistor is to obtain a certain dc collector current at a certain dc collector
q with a circuit diagram explain how a transistor in common-base configuration amplify signals the common-base terminology is derived from the
q write short notes on the stability factor of biasing circuitsthe degree of success achieved in stabilizing ic in the face of variations in ico is
properties of a good heat sinkfor maximum efficiency a heat sink should be1be in good thermal contact with the transistor case2have the largest
q write a short note on heat sinkfor transistors handling small signals the power dissipated at the collector is smallsuch transistors have little
q what is thermal runawaythe problem of self heating arises due to dissipation of power at the collector junction the leakage current icbo is
q explain the applications of emitter followerbecause of high input impedance and low output impedance an emitter follower is capable of transferring
q what is thermal runaway state one method to prevent the samethe effect of changes in leakage current ico and current gainb on the dc bias point
q why ce configuration is widely used in amplifier circuitthe main utility of a transistor lies in its ability to amplify weak signals the
q describe transistor stability parametersthe two parameters aremiddot the stability factor kmiddot stability measureszlig1these parameters determine
q explain the significance of the coupling capacitor and the re - ce circuitthe function of the coupling capacitor is to isolate the amplifier input
q why do we cascade amplifiers why is rc coupling the most widely used coupling between 2 stages of a cascading amplifierthe voltage or power gain or
q explain the bandwidth for the curve and the applications of an rc coupled amplifierfrequency response curve of an rc coupled amplifier was shown
q explain the working of a darlington pairthis is two transistors connected together so that the current amplified by the first is amplified further
q i what are the different types of plots for frequency response in an rc coupled amplifier ii what is a bode plot what are its usesthe
q in an amplifier the maximum voltage gain is 1500 and occurs at 1khz it falls to 10605 at 20khz and at 20hz determine i lower cut-off frequency ii
q show output characteristic of common emitter configurationoutput characteristics this family of curves may be divided into three regions just as
q what do you mean by common collector configurationcommon collector configurationin this circuit the collector is common to both the input and the
q illustratecommon base configurationcommon base configuration in this circuit the base is common to both input and the outputsuch a configuration is
q explain common emitter configurationcommon emitter configuration in this circuit the emitter is common to both input and the outputsuch a