1
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
In the following transistor circuit, VBE = 0.7V, re = 25m/IE, $$\beta $$ and all the capacitances are very large. GATE ECE 2008 Analog Circuits - Bipolar Junction Transistor Question 28 English

The mid-band voltage gain of the amplifier is approximately

A
-180
B
-120
C
-90
D
-60
2
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
In a transconductance amplifier , it is desirable to have
A
a large input resistance and large output resistance
B
a large input resistance and a small output resistance
C
a small input resistance and a large output resistance
D
a small input resistance and a small output resistance
3
GATE ECE 2007
MCQ (Single Correct Answer)
+2
-0.6
For the BJT circuit shown, assume that the $$\beta $$ of the transistor is very large and VBE = 0.7 V. The mode of operation of the BJT is GATE ECE 2007 Analog Circuits - Bipolar Junction Transistor Question 30 English
A
cut-off
B
saturation
C
normal active
D
reverse active
4
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
In the transistor amplifier circuit shown in the figure below, the transistor has the following parameters: $${\beta _{DC}}$$ = 60, $${V_{BE}}$$ = 0.7V, $${h_{ie}} \to \,\,\infty $$, $${h_{fe}} \to \,\,\infty $$. The capacitance CC can be assumed to be infinite. GATE ECE 2006 Analog Circuits - Bipolar Junction Transistor Question 33 English

If $${\beta _{DC}}$$ is increased by 10%, the collector-to emitter voltage drop

A
increase by less than (or) equal to 10%
B
decreases by less than (or) equal to 10%
C
increases by more than 10%
D
decreases by more than 10%
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