Analog Electronics An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The DC electric current gain in common collector configuration is given by α - 1. β. α. β + 1. α - 1. β. α. β + 1. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics For audio frequency applications, the popular oscillator used is Wien bridge oscillator Phase shift oscillator Hartley oscillator Crystal oscillator Wien bridge oscillator Phase shift oscillator Hartley oscillator Crystal oscillator ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics In the second approximation, the total voltage across the zener diode is the sum of the breakdown voltage and the voltage across the zener resistance. source. zener diode. series resistor. zener resistance. source. zener diode. series resistor. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Pinch-off voltage in a JFET is the gate to source voltage that gives unity drain current. the gate to source voltage that gives zero drain current. the drain voltage that gives zero drain current. the drain voltage that gives infinite drain current. the gate to source voltage that gives unity drain current. the gate to source voltage that gives zero drain current. the drain voltage that gives zero drain current. the drain voltage that gives infinite drain current. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which of the following transistor configuration circuit is much less temperature dependent ? Common base. None of these Common emitter. Common collector. Common base. None of these Common emitter. Common collector. ANSWER DOWNLOAD EXAMIANS APP
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