Analog Electronics Which material behave like perfect insulators at low temperatures & conductor at higher temperature ? All the above Ge GaAs Si All the above Ge GaAs Si ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which process is used for adding impurity into a pure semiconductor material ? Conducting Insulating None of these Doping Conducting Insulating None of these Doping ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics A silicon pn junction in forward condition has a voltage drop closer to 0.7 V. 0.1 V. 1.7 V. 2.1 V. 0.7 V. 0.1 V. 1.7 V. 2.1 V. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics In a JFET, if the gate voltage Vgs is made more negative, then channel conductivity decreases. channel conductivity increases. depletion region decreases. channel electric current increases . channel conductivity decreases. channel conductivity increases. depletion region decreases. channel electric current increases . ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is f = 1 / (2π RC√6) None of these f = 1 / (2π√R(C1 + C2)) f = 1 / (2π√RC) f = 1 / (2π RC√6) None of these f = 1 / (2π√R(C1 + C2)) f = 1 / (2π√RC) ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics An amplifier without feedback has a voltage gain of 50,input resistance os 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current shunt negative feedback amplifier using the above amplifier with a feedbacik factor of 0.2 is 1/5KΩ 11KΩ 5KΩ 1/11KΩ 1/5KΩ 11KΩ 5KΩ 1/11KΩ ANSWER DOWNLOAD EXAMIANS APP
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