Analog Electronics Which material behave like perfect insulators at low temperatures & conductor at higher temperature ? GaAs Ge All the above Si GaAs Ge All the above Si ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The voltage divider biasing circuit is used in amplifiers quite often because it limits the AC signal going to base. makes the operating point almost independent of β. reduces the cost of the circuit. reduces the DC base electric current. limits the AC signal going to base. makes the operating point almost independent of β. reduces the cost of the circuit. reduces the DC base electric current. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics For emitter bias, the voltage at the emitter is 0.7 V less than the base voltage. ground voltage. collector voltage. emitter voltage. base voltage. ground voltage. collector voltage. emitter voltage. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which process is used for adding impurity into a pure semiconductor material ? Conducting None of these Doping Insulating Conducting None of these Doping Insulating ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is None of these f = 1 / (2π√RC) f = 1 / (2π RC√6) f = 1 / (2π√R(C1 + C2)) None of these f = 1 / (2π√RC) f = 1 / (2π RC√6) f = 1 / (2π√R(C1 + C2)) ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics In a bipolar junction transistor the base region is made very thin so that base can be easily fabricated. base can be easily biased. recombination in base region is minimum. electric field gradient in base is high. base can be easily fabricated. base can be easily biased. recombination in base region is minimum. electric field gradient in base is high. ANSWER DOWNLOAD EXAMIANS APP
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