31. Which class of amplifier has the lowest collector circuit efficiency
32. Consider the following statements:
Sziklai pair
1. Is also called complementary Darlington
2. Acts like a single p-n-p transistor with a very high current gain
3. Can be used in class B push-pull power amplifier
Which of these statements are correct?
Sziklai pair
1. Is also called complementary Darlington
2. Acts like a single p-n-p transistor with a very high current gain
3. Can be used in class B push-pull power amplifier
Which of these statements are correct?
33. In an op-amp, non-inverting terminal is grounded, input is connected to inverting terminal and there is no feedback resistance. The output is
34. What are the output voltage levels for the given circuit? (Assume Si diode)
35. A bipolar junction transistor is in saturation region. Given VCC = 10 V, RC = 1 kΩ, hFE = 100 and VCEsat = 0.3 V. What is the collector current in saturation?
36. The first dominant pole encountered in the frequency response of a compensated op-amp is approximately at
37. In the Wien bridge oscillator, the 0° phase-shift is met by using lead-lag network and by using.
38. Among CB, CE and CC configurations of the amplifiers, which is having low voltage gain and high current gain?
39. The output voltage (V0) of the circuit shown in the given figure is
40. An amplifier without feedback has a voltage gain of 50, input resistance of 1 kΩ and output resistance of 2.5 kΩ. The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is
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