Analog Circuits
Bipolar Junction Transistor
Marks 1Marks 2Marks 5
Operational Amplifier
Marks 1Marks 2Marks 5Marks 8
Frequency Response
Marks 1Marks 2Marks 5
Feedback Amplifier
Marks 1Marks 2
Power Amplifier
Marks 1Marks 2
1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
From a measurement of the rise time of the output pulse of an amplifier whose input is a small amplitude square wave, one can estimate the following parameter of the amplifier:
A
gain-bandwidth product
B
slow rate
C
upper 3-dB frequency
D
lower 3-dB frequency
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
In a series regulated power supply circuit, the voltage gain Av of the ‘pass’ transistor satisfies the condition:
A
$$A_v\rightarrow\infty$$
B
$$1\;\ll\;A_v\;\ll\;\infty$$
C
$$A_v\;\approx\;1$$
D
$$A_v\;\ll\;1$$
3
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3

A transistor having $$\alpha$$ = 0.99 and VBE = 0.7 V, is used in the circuit of the figure.What is the value of the collector current?

GATE ECE 1995 Analog Circuits - Bipolar Junction Transistor Question 69 English
A
5.32 mA
B
6.0 mA
C
6.5 mA
D
7.0 mA
4
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
A BJT is said to be operating in the saturation region if
A
both the junctions are reverse biased
B
base-emitter junction is reverse biased and base-collector junction is forward biased.
C
base-emitter junction is forward biased and base-collector junction reverse biased
D
both the junctions are forward biased
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