Analog Circuits
1
GATE ECE 1999
MCQ (Single Correct Answer)
+2
-0.6
An amplifier has an open loop gain of 100, an input impedance of 1 k$$_\Omega $$, and an output impedance of 100 $$_\Omega $$ . A feedback network with a feedback factor of 0.99 is connected to the amplifier an a voltage series feedback mode. The new input and output impedance respectively are
2
GATE ECE 1999
MCQ (Single Correct Answer)
+2
-0.6
Negative feedback in an amplifier
3
GATE ECE 1997
Subjective
+2
-0
Negative feedback in
1. Voltage series configuration
2.Current shunt configuration
(a) increases input impedance
(b) decreases input impedance
(c) increases closed loop gain
(d) leads to ascillation.
4
GATE ECE 1991
MCQ (More than One Correct Answer)
+2
-0
Two non-inverting amplifiers, one having a unity gain and other having a gain of twenty, are made using identical operational gain amplifier, the amplifier with gain twenty has
Questions Asked from Marks 2
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics