Analog Electronics - Study Mode
[#366] The range of frequency generated by VHF oscillator is-
Correct Answer
(C) 30 MHz - 300 MHz
[#367] An npn BJT has g m = 38 mA/V, C µ = 10 -14 F, C π = 4 × 10 -13 F, and DC current gain β 0 = 90. For this transistor f T and f β are
Correct Answer
(B) f T = 1.47 × 10 10 Hz and f β = 1.64 × 10 8 Hz
[#368] In the figure, assume that the forward voltage drops of the PN diode D 1 and Schottky diode D 2 are 0.7 V and 0.3 V, respectively. If ON denotes conducting state of the diode and OFF denotes non-conducting state of the diode, then in the circuit,
Correct Answer
(D) D 1 is OFF and D 2 is ON
[#369] The large signal bandwidth of an op-amp is limited by
Correct Answer
(A) Its slew rate specification
[#370] In a transistor circuit I B remains constant but β increases
Correct Answer
(B) Operating point will go up