71. When L is doubled and C is halved, the frequency of oscillation is?
72. If the OP-AMP shown in the figure below is ideal, then the output voltage Vout will be equal to
73. Vo for the above op-amp circuit is:
74. Which of the following is the main application of Zener diode?
75. Consider the following?
1. Distortion
2. Gain
3. Bias stabilization
4. Sensitivity
5. Frequency response
Which of these properties of the Power Amplifier one should concentrate upon while designing a good Power Amplifier circuit?
1. Distortion
2. Gain
3. Bias stabilization
4. Sensitivity
5. Frequency response
Which of these properties of the Power Amplifier one should concentrate upon while designing a good Power Amplifier circuit?
76. Cascading amplifier stages to obtain a high gain is best done with . . . . . . . .
77. An FET is a better chopper than a BJT because it has
78. For the circuit shown in the figure below, the voltage V0 is (here D is an ideal diode)
79. In a class-B push-pull operation, the d.c. power drawn is 28 W. What is the power delivered by the amplifier at the ideal maximum efficiency of power conversion?
80. An amplifier with mid band gain |A| = 500 has negative feedback |β| = $$\frac{1}{{100}}.$$ If upper cut-off without feedback were at 60 kHz, then with feedback it would become
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