Q161
Open questionThe Wien bridge oscillator is
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Analog Electronics
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Q162
Open questionIn a CMOS CS amplifier, the active load is obtained by connecting a
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Q163
Open questionMatch List-I with List-II and select the correct answer using the options given below the lists:
| List-I (Oscillator) | List-II (Characteristics Features) |
| a. Wien Bridge | 1. RF oscillator two inductance and one capacitance on the reactance network. |
| b. Colpitts | 2. LC oscillator for radio frequency : three capacitances and one inductance in the reactance network. |
| c. Hartley | 3. RC oscillator for audio frequency applications. |
| d. Clapp | 4. RF oscillator : two capacitances and one inductance as the reactance network. |
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Q164
Open questionCalculate the frequency of following circuit
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Q165
Open questionIn figure what is the base current if VBE = 0.7 V?
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Q166
Open questionWhat will be the period and frequency of oscillation for an astable multivibrator, given the following specifications?
R1 = 1 kΩ R2 = 5.6 kΩ C1 = 0.01 µF C2 = 0.03 µF
R1 = 1 kΩ R2 = 5.6 kΩ C1 = 0.01 µF C2 = 0.03 µF
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Q167
Open questionThe percentage regulation of Half-wave rectifier is
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Q168
Open questionWhich one of the following statements is correct?
The rise time of an amplifier is
The rise time of an amplifier is
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Q169
Open questionAssume the op-amp in the circuit of figure to be ideal. The value of the output voltage v0 is
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Q170
Open questionAn amplifier circuit has an overall current gain of -100 and an input resistance of 10 kΩ with a load resistance of 1 kΩ. The overall voltage gain of the amplifier is
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Q171
Open questionWhen L is doubled and C is halved, the frequency of oscillation is?
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Q172
Open questionIf the OP-AMP shown in the figure below is ideal, then the output voltage Vout will be equal to
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Q173
Open questionVo for the above op-amp circuit is:
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Q174
Open questionWhich of the following is the main application of Zener diode?
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Q175
Open questionConsider 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?
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Q176
Open questionCascading amplifier stages to obtain a high gain is best done with . . . . . . . .
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Q177
Open questionAn FET is a better chopper than a BJT because it has
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Q178
Open questionFor the circuit shown in the figure below, the voltage V0 is (here D is an ideal diode)
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Q179
Open questionIn 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?
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Q180
Open questionAn amplifier with mid band gain |A| = 500 has negative feedback |β| = If upper cut-off without feedback were at 60 kHz, then with feedback it would become
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