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1
GATE EE 1993
MCQ (More than One Correct Answer)
+1
-0.3
A Wein bridge oscillator is shown in figure. Which of the following statements are true if $$'f'$$ is the frequency of oscillation? GATE EE 1993 Analog Electronics - Feedback Amplifiers and Oscillator Circuits Question 2 English
A
For $$R = 1\,k\Omega ,\,C = {1 \over {2\pi }}\mu F,\,\,f = 1\,kHz$$
B
$$R = 3\,k\Omega ,\,C = {1 \over {18\pi }}\mu F,\,\,f = 3\,kHz$$
C
The gain of the op-amp stage should be less than two for proper operation
D
The gain of the op-amp stage should be three for proper operation
2
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
In a common Emitter amplifier, the un bypassed emitter resistance provides
A
Voltage - shunt feedback
B
Current - Series feedback
C
Negative - Voltage feedback
D
Positive - current feedback
3
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
The voltage series feedback in a feedback amplifier leads to
A
increase in band width, while the voltage gain becomes less sensitive to variations in components and device characteristics
B
decrease in overall gain, while the input resistance decreases
C
increase in distortion, while the output resistance decreases
D
decrease in input resistance, while the output resistance increases
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Network Elements Network Theorems Three Phase Circuits Transient Response Sinusoidal Steady State Analysis Graph Theory Two Port Networks
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
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Continuous and Discrete Time Signals Linear Time Invariant Systems Continuous Time Signal Fourier Transform Discrete Time Signal Z Transformation Continuous Time Signal Laplace Transform Sampling Theorem Continuous Time Periodic Signal Fourier Series Miscellaneous
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Electrical and Electronics Measurement
Basic of Indicating Instruments Error Analysis and Measurement Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Potentiometer and Instrument Transformers Cathode Ray Oscilloscope
Analog Electronics
Diode Circuits and Applications Frequency Response Bjt and Mosfet Biasing 555 Timer Feedback Amplifiers and Oscillator Circuits Operational Amplifier Small Signal Modeling
Control Systems
Time Response Analysis Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Root Locus Techniques Basics of Control System Routh Hurwitz Stability Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers Inverters
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Sequential Circuits Microprocessor Boolean Algebra Analog to Digital and Digital to Analog Converter Combinational Circuits Minimization Logic Families and Memories Logic Gates
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