Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is f = 1 / (2π√RC) None of these f = 1 / (2π√R(C1 + C2)) f = 1 / (2π RC√6) f = 1 / (2π√RC) None of these f = 1 / (2π√R(C1 + C2)) f = 1 / (2π RC√6) ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The extremely high input impedance of a MOSFET is primarily due to the negative gate-source voltage. absence of its channel. depletion of electric current carriers. extremely small leakage electric current of its gate capacitor. negative gate-source voltage. absence of its channel. depletion of electric current carriers. extremely small leakage electric current of its gate capacitor. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics If the series resistance increases in an unloaded zener regulator, the zener current stays the same. increases. equals the voltage divided by the resistance. decreases. stays the same. increases. equals the voltage divided by the resistance. decreases. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which of the following is trivalent impurity ? Silicon Boron None of these Antimony Silicon Boron None of these Antimony ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics In a properly biased NPN transistor most of the electrons from the emitter recombine with holes in the base . recombine in the emitter its self. are stopped by the junction barrier. pass through the base to the collector. recombine with holes in the base . recombine in the emitter its self. are stopped by the junction barrier. pass through the base to the collector. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250, are cascaded. The open circuit voltage gain of combined amplifier is 51dB 98dB 102dB 49dB 51dB 98dB 102dB 49dB ANSWER DOWNLOAD EXAMIANS APP
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