Analog Electronics Negative feedback in an amplifier Reduces gain Increase frequency &phase distortion Reduces bandwidth Increases noise Reduces gain Increase frequency &phase distortion Reduces bandwidth Increases noise ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The diffusion capacitance of a forward biased P+N junction diode with a steady electric current I depends on mean life time of the holes. width of the depleted region. mean life time of the electrons. junction area. mean life time of the holes. width of the depleted region. mean life time of the electrons. junction area. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Large electric current flow of a BJT occurs in base. in collector. through emitter-collector in emitter. in base. in collector. through emitter-collector in emitter. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics What will happen if doping of an intrinsic semiconductor with pentavalent impurity atom ? Fermi level fall None of these Fermi level not change Fermi level raises Fermi level fall None of these Fermi level not change Fermi level raises ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Generally, the gain of a transistor amplifier falls at high frequencies due to the Coupling capacitor at the input Internal Capacitance of the device Coupling capacitor at the output Skin effect Coupling capacitor at the input Internal Capacitance of the device Coupling capacitor at the output Skin effect 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 =1.47 x 1010 Hz & fβ = 1.64 x 108 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 =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 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 =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz ANSWER DOWNLOAD EXAMIANS APP
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