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1
GATE ECE 2010
MCQ (Single Correct Answer)
+1
-0.3
The amplifier circuit shown below uses a silicon transistor. The capacitors CC and CE can be assumed to be short at signal frequency and the effect of output resistance r0 can be ignored. If CE is disconnected from the circuit, which one of the following statements is TRUE? GATE ECE 2010 Analog Circuits - Bipolar Junction Transistor Question 62 English
A
The input resistance Ri increases and the magnitude of voltage gain AV decreases
B
The input resistance Ri decreases and the magnitude of voltage gain AV decreases
C
Both input resistance Ri and the magnitude of voltage gain AV decrease
D
Both input resistance Ri and the magnitude of voltage gain AV increase
2
GATE ECE 2006
MCQ (Single Correct Answer)
+1
-0.3
The input impedance (Zi) and the output impedance (Zo) of an ideal transconductance (voltage controlled current source) amplifier are
A
Zi = 0, Zo = 0
B
Zi = 0, Zo = $$\infty$$
C
Zi = $$\infty$$, Zo = 0
D
Zi = $$\infty$$, Zo = $$\infty$$
3
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The cascode amplifier is a multistage configuration of
A
CC-CB
B
CE-CB
C
CB-CC
D
CE-CC
4
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
Assuming VCesat=0.2V and β = 50, the minimum base current (IB) required to drive the transistor in the figure to saturation is GATE ECE 2004 Analog Circuits - Bipolar Junction Transistor Question 66 English
A
56 µA
B
140 mA
C
60 µA
D
3 mA
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Control Systems
Basic of Control Systems Signal Flow Graph and Block Diagram Time Response Analysis Stability Root Locus Diagram Frequency Response Analysis Compensators State Space Analysis
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Probability and Statistics Linear Algebra Complex Variable Transform Theory Vector Calculus Differential Equations Calculus Numerical Methods
Analog Circuits
Frequency Response Operational Amplifier Power Amplifier Diodes Oscillators Feedback Amplifier 555 Timer Bipolar Junction Transistor FET and MOSFET
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Network Elements State Equations For Networks Network Graphs Miscellaneous Sinusoidal Steady State Response Network Theorems Two Port Networks Transient Response
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Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
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Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous
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Fundamentals of Information Theory Noise In Digital Communication Digital Communication Systems Random Signals and Noise Analog Communication Systems
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Verbal Ability Logical Reasoning Numerical Ability
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