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explain the third group of 32 ascii character the third group of 32 ascii characters is set aside for the upper case alphabetic characters the ascii
define the second group of 32 ascii character codesthe second group of 32 ascii character codes include various punctuation symbols special
define some illustrations of common control charactersillustrations of common control characters includecarriage return ascii code 0dh which
explain the ascii character setmost programming languages have a means of defining a character as a numeric code and conversely converting the code
explain the alphanumeric coding - bcd to decimal conversionfor the inherently binary world of computer it is necessary to put all symbols letters
q explain the theory of thermal runaway the maximum average power pdmax which a transistor can dissipate depends
define gray code - bcd to decimal conversionthe gray code is a variation on binary code in which only 1 bit is changed from the preceding number the
explain the excess three codes - bcd to decimal conversionthe excess-3 representation of a number is based on binary coded decimal it is formed by
q give applications of emitter followerthe emitter follower has the following principal applications1 to provide current amplification with no
q what do you mean by feedback in amplificationfeedback feedback in its broadest sense means that a certain amount of the output signal is fed
q what is output impedanceoutput impedance the output impedance of an amplifier is a measure of the impedance or resistance it has nothing to do
q what do you know about input impedanceinput impedance amplifiers will be quoted as having a specific input impedance the sort of load it will
q what is meant by amplificationthe basic amplifying elements are namely valves vacuum tubes bipolar transistors and fets the term amplify basically
q transformer-coupled amplifierstransformer-coupled amplifiers the figure illustrates another type of coupling often used to couple audio frequencies
q explain working of resistance-capacitance coupled amplifiersresistance-capacitance rc-coupled amplifiers the following figure illustrates the
q what are the different types of coupling in amplifiersthe coupling between stages of amplifications may also be used to classify amplifiers there
q write a short note on the frequency response of a r-c coupled amplifierat low frequencies lt50hz the reactance of coupling capacitor cc is quite
q what are the applications of a r-c coupled amplifierthe r-c coupled amplifiers have excellent audio fidelity over a wide range of frequency
q what are the advantages and disadvantages of a r-c coupled amplifieradvantagesmiddot it has excellent frequency response the gain is constant over
q a transistor in a fixed bias amplifier circuit was replaced by another transistor of beta equaling 150 instead of 60if ib of transistor is equal to
q prove mathematically that the operating point does not depend on beta in a potential divider bias circuit to determine the operating point consider
q what is a heat sink list the factors which determine its efficiencyto reduce the chance of thermal runaway the rise of temperature at the collector
q what is meant by thermal runaway in a transistor when current flows through the collector circuit it produces heat at the collector junction this
a hinged object hangs on the outside of a rotating wheel when the object is in the six o3939clock position it needs to be rotated 180 degrees using
what do you mean by variability in oxidation state of transition metals different from that of the non transition metals illustrate with