Analog Electronics The expression for frequency of oscillations of a RC phase shift oscillator is None of these f = 1 / (2π RC√6) f = 1 / (2π√R(C1 + C2)) f = 1 / (2π√RC) None of these f = 1 / (2π RC√6) f = 1 / (2π√R(C1 + C2)) f = 1 / (2π√RC) 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 =1.33 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 = 1.33 x 1012 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 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 = 1.33 x 1012 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The current gain of a bipolar transistor drops at high frequencies because of Transistor capacitances High current effects in the base Parasitic inductive elements The early effect Transistor capacitances High current effects in the base Parasitic inductive elements The early effect ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics If the base resistor is very small, the transistor will operate in the cutoff region. saturation region. All of these active region. cutoff region. saturation region. All of these active region. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The current gain of a BJT is gm r0 gm rπ gm / r0 gm /rπ gm r0 gm rπ gm / r0 gm /rπ ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which is the factor on which total number of electrons in an atom depends ? None of these atomic size atomic number atomic weight None of these atomic size atomic number atomic weight ANSWER DOWNLOAD EXAMIANS APP
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