1
GATE ECE 2025
MCQ (Single Correct Answer)
+1
-0.33

A simplified small-signal equivalent circuit of a BJT-based amplifier is given below. The small-signal voltage gain $V_o / V_s$ (in $\mathrm{V} / \mathrm{V}$ ) is_________.

GATE ECE 2025 Analog Circuits - Bipolar Junction Transistor Question 2 English
A
$\frac{-\beta R_L}{R_s+r_\pi}$
B
$\frac{+\beta R_L}{R_s}$
C
$\frac{-\beta R_L}{R_s}$
D
$\frac{+\beta R_L}{R_s+r_\pi}$
2
GATE ECE 2025
MCQ (Single Correct Answer)
+1
-0.33
The ideal BJT in the circuit given below is biased in the active region with a $\beta$ of 100 . If $I_B$ is $10 \mu \mathrm{~A}$, then $V_{C E}$ (in Volts, rounded off to two decimal places) is ____________ . GATE ECE 2025 Analog Circuits - Bipolar Junction Transistor Question 3 English
A
4.95
B
3.03
C
1.92
D
3.73
3
GATE ECE 2016 Set 3
Numerical
+1
-0
Consider the circuit shown in the figure. Assuming VBE1 = VEB2 = 0.7 volt, value of the dc voltage Vc2 (in volt) is _______ GATE ECE 2016 Set 3 Analog Circuits - Bipolar Junction Transistor Question 51 English
Your input ____
4
GATE ECE 2016 Set 2
Numerical
+1
-0
Resistor R1 in the circuit below has been adjusted so that I1 = 1 mA. The bipolar transistor Q1 and Q2 are perfectly matched and have very high current gain, so their base currents are negligible. The supply voltage Vcc is 6 V. The thermal voltage kT/q is 26 mV. GATE ECE 2016 Set 2 Analog Circuits - Bipolar Junction Transistor Question 52 English

The value of R2 (in $$\Omega $$ ) for which I2 = 100 $$\mu {\rm A}$$ is ________.

Your input ____
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