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
The emitter coupled pair of BJT’s gives a linear transfer relation between the differential output voltage and the differential input voltage Vid only. When the magnitude of Vid is less than '$$\alpha$$' times the thermal voltage, where '$$\alpha$$' is
A
4
B
3
C
2
D
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
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