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q mention the three transistor configurationsthe three transistor configurations are1common emitter configuration2common base configuration3common
q due to what special property does an emitter amplifier work as a buffer amplifier the circuit design of the emitter follower is such that it has
define some huntington postulates - boolean algebrapostulates1 commutative lawa a b b a b a b b a2 distributive lawa a b c a b a c b a b c a
q why a common collector amplifier is called an emitter follower when the input voltage goes through its positive half
q what is the speciality of a darlington transistora darlington pair behaves like a single transistor with a very high current gain the total gain of
q which of the 3 transistor configuration is best to use in cascade if maximum voltage gain is to be realized the common collector configuration
q what are frequency response curves how are they madeevery amplifier has a frequency-response curve associated with it they provide a picture of the
q what are transistor amplifiers what is meant by efficiency of an amplifier what is amplifier couplingthe amplifier is a device that enables an
q mention the advantages and disadvantages of direct coupled coupling advantages
q a transistor is connected in common emitter configuration collector supply voltage vcc is 10 volts load resistance rl is 800ohmvoltage drop across
q why ce configuration is widely used in amplifier circuitsthe main ability of an transistor lies in amplifying weak signals the transistor cannot
q explain output ce characteristics1 in the active region ic increases slowly as vce increases the slope of the curved is greater than the cb output
q what are the current relations in common emitter configurationin a cb configuration ie is the input current and ic is the output current these
q mention some characteristics of transistorsmiddot when a npn transistor is working there is always a constant 06 volt drop between the base and
q why the gain of the amplifier decreases if the ce is avoidedwhen the ce is connected in the circuit ac signals get bypassed through it to the
q what is power gainpower gain is the ratio of power delivered to the load to power delivered to the amplifier is the power gainappopi
q what is the voltage gainvoltage gain is the ratio of output voltage to input voltage it is represented as avvo-voltageoutputvi-voltage
q what is current gain in rc coupled amplifiercurrent gain is the ratio of the output current to the input currentwe represent it as aiaiioisit
q what do you mean by direct couplingin this method the ac output signal is fed directly to the next stage no reactance is included in this coupling
q illustrate transformer couplingin this method the primary winding of the transformer acts as a collector load and the secondary winding transfers
q explain resistance-capacitance couplingit is the most commonly used coupling in discrete device amplifier as it is least expensive and has
q explain the different coupling schemes used in amplifierswhen amplifiers are cascaded it is necessary to use a coupling network between the output
q explain the classification of amplifiers on the biasing conditionsbased on the amount of transistor bias and amplitude of the input signal
q what are the various types of amplifiersamplifiers can be classified as followsa based on the transistor configuration1 common emitter amplifier2
q what is an amplifier what are the various types of amplifiersamplifier a circuit that increases the amplitude of the given input signal is an