1
GATE ECE 2013
MCQ (Single Correct Answer)
+2
-0.6
The ac schematic of an NMOS common-source stage is shown in the figure below, where part of
the biasing circuits has been omitted for simplicity. For the n -channel MOSFET M, the
transconductance gm = 1 mA/V, and body effect and channel length modulation effect are to be
neglected. The lower cutoff frequency in Hz of the circuit is approximately at
2
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
An n-channel depletion MOSFET has following two points on its ID - VGS curve:
(i)VGS = 0 at Id = 12 mA and
(ii)VGS = -6 Volts at Zo =$$\infty $$
Which of the following Q-points will give the highest transconductance gain for small signals?
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Given
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
Zi and Zo of the circuit are respectively
4
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Given
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
$${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$
Transconductance in milli-Siemens (mS) and voltage gain of the amplifier are respectively.
Questions Asked from FET and MOSFET (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Signals and Systems
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
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics