1
GATE ECE 1990
MCQ (More than One Correct Answer)
+2
-0.6
Which of the following statements are correct for basic transistor Amplifier configurations?
A
CB Amplifiers has low input impendence and low current gain.
B
CC Amplifiers has low output impedence and a high current gain.
C
CE Amplifier has very poor voltage gain but very high input impedance.
D
The current gain of CB Amplifier is higher than the current gain of CC Amplifiers.
2
GATE ECE 1990
MCQ (Single Correct Answer)
+2
-0.6
For good stabilized biasing of the transistor of the CE Amplifier of fig, we should have GATE ECE 1990 Analog Circuits - Bipolar Junction Transistor Question 17 English
A
$${{{R_E}} \over {{R_B}}} < < 1$$
B
$${{{R_E}} \over {{R_B}}} > > 1$$
C
$${{{R_e}} \over {{R_B}}} < < {h_{FE}}$$
D
$${{{R_E}} \over {{R_B}}} > > {h_{FE}}$$
3
GATE ECE 1989
MCQ (Single Correct Answer)
+2
-0.6
Of the four biasing circuits shown in Fig. For a BJT, indicate the one which can have maximum bias stability:
A
GATE ECE 1989 Analog Circuits - Bipolar Junction Transistor Question 1 English Option 1
B
GATE ECE 1989 Analog Circuits - Bipolar Junction Transistor Question 1 English Option 2
C
GATE ECE 1989 Analog Circuits - Bipolar Junction Transistor Question 1 English Option 3
D
GATE ECE 1989 Analog Circuits - Bipolar Junction Transistor Question 1 English Option 4
4
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
The quiescent collector current Ic, of a transistor is increased by changing resistance. As a result
A
gm will not be affected
B
gm will decrease
C
gm will increase
D
gm will increase or decrease depending upon bias stability.
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