1
GATE ECE 2000
MCQ (Single Correct Answer)
+2
-0.6
In the circuit shown in the figure assume that the transistor is in
the active region. It has a large β and its base Emitter voltage is
0.74. The value of Ic is
2
GATE ECE 1996
Subjective
+2
-0
Match the following.
(b)Differential Amplifier
(c)Darlington pair common-collector Amplifier
(2)is a wide band Amplifier
(3)has very low input impedance Emitter Amplifier and very high current gain
(4)has very high input impedance and very high current gain
(5)Provides high common mode voltage Rejection
Group - I
(a)Cascode amplifier(b)Differential Amplifier
(c)Darlington pair common-collector Amplifier
Group - II
(1)does not provide current gain(2)is a wide band Amplifier
(3)has very low input impedance Emitter Amplifier and very high current gain
(4)has very high input impedance and very high current gain
(5)Provides high common mode voltage Rejection
3
GATE ECE 1996
MCQ (Single Correct Answer)
+2
-0.6
A Darlington stage is shown in the figure, if the transconductance of q1 is gm1 and q2 is gm2, then the overall transconductance
$$g\matrix{ c \cr m \cr } \left[ { \buildrel \Delta \over = {{{i_c}^c} \over {{v_{be}}^c}}} \right]$$ is given by
$$g\matrix{ c \cr m \cr } \left[ { \buildrel \Delta \over = {{{i_c}^c} \over {{v_{be}}^c}}} \right]$$ is given by
4
GATE ECE 1992
Numerical
+2
-0
If the transistors in fig. has high value of β and a vBE of 0.65, the
current I flowing through the 2 kilo ohms resistance will be ______.
Your input ____
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