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GATE ECE 2017 Set 1
Numerical
+2
-0
For the DC analysis of the Common-Emitter amplifier shown, neglect the base current and assume that the emitter and collector current are equal. Given that VT = 25mV, VBE = 0.7V, and the BJT output r0 is practically infinite. Under these conditions the midband voltage gain magnitude, av = $$\left| {{v_0}/{v_i}} \right|\,\,\,V/V,$$ is _____ GATE ECE 2017 Set 1 Analog Circuits - Bipolar Junction Transistor Question 14 English
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2
GATE ECE 2015 Set 2
Numerical
+2
-0
In the ac equivalent circuit shown, the two BJTs are biased in active region and have identical parameters with β >> 1. The open circuit small signal voltage gain is approximately _______. GATE ECE 2015 Set 2 Analog Circuits - Bipolar Junction Transistor Question 15 English
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3
GATE ECE 2015 Set 1
Numerical
+2
-0
In the circuit shown, I1 = 80 mA and I2 b= 4mA. Transistors T1 and T2 are identical. Assume that the thermal voltage VT is 26 mV at 27oC. At 50oC, the value of the voltage V12 = V1 - V2 (in mV) is _______. GATE ECE 2015 Set 1 Analog Circuits - Bipolar Junction Transistor Question 16 English
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4
GATE ECE 2014 Set 1
Numerical
+2
-0
For the amplifier shown in the figure, the BJT parameters are VBE = 0.7 V, $$\beta $$ = 200, and thermal voltage VT = 25 mV. The voltage gain (Vo/Vi of the amplifier is ______. GATE ECE 2014 Set 1 Analog Circuits - Bipolar Junction Transistor Question 25 English
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