1
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
Three identical RC-Coupled transistor amplifiers are cascaded. If each of the
amplifiers has a frequency response as shown in figure, the overall frequency
response is as given as
A
B
C
D
2
GATE ECE 2000
MCQ (Single Correct Answer)
+1
-0.3
The current gain of a bipolar transistor drops at high frequencies because of
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
The $${f_T}$$ of a BJT is related to its $${g_{m,}}\,\,{C_\pi }$$ and $${C_\mu }$$ as follows
4
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
An npn transistor has a beta cut-off frequency $${f_\beta }$$ of 1MHz and Common Emitter short circuit low frequency current gain $${\beta _o}$$ of 200. The unity gain frequency $${f_T}$$ and the alpha cut-off frequency $${f_\alpha }$$ respectively are
Questions Asked from Frequency Response (Marks 1)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Communications
Electromagnetics
General Aptitude