Analog Electronics A differential amplifier is invariably used in the i/p stage of all OP-amps.This is dome basically to provide the OP-amps with a very high Open-loop gain Bandwidth CMRR Slew rate Open-loop gain Bandwidth CMRR Slew rate 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 11KΩ 1/5KΩ 1/11KΩ 5KΩ 11KΩ 1/5KΩ 1/11KΩ 5KΩ ANSWER DOWNLOAD EXAMIANS APP
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 =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 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 =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which of following is not an essential element of a DC power supply? Rectifier. Voltage amplifier. Filter. Voltage regulator. Rectifier. Voltage amplifier. Filter. Voltage regulator. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics If the collector resistor is open, the collector voltage is low. unchanged. unknown. high. low. unchanged. unknown. high. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The transition capacitance of a reverse biased pn junction having uniform doping on both sides, varies with junction voltage ( VB ) as ( VB )- 1 / 2. VB. 1 / VB. ( VB )2. ( VB )- 1 / 2. VB. 1 / VB. ( VB )2. ANSWER DOWNLOAD EXAMIANS APP
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