GATE EE

Small Signal Modeling

Analog Electronics

(Past Years Questions)

Marks 1

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In the single stage transistor amplifier circuit shown in figure, the capacitor $${C_E}$$ is removed. Then the ac small ...
GATE EE 2001
In the transistor amplifier shown in figure, the ratio of small signal voltage gain when the emitter resistor is bypasse...
GATE EE 1996

Marks 2

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The transconductance $${g_m}$$ of the transistor shown in figure is $$10$$ $$mS.$$ The value of input resistance $${R_{i...
GATE EE 2004

Marks 5

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The transistor in the amplifier circuit shown in the figure is biased at $${{\rm I}_C} = mA.$$ Use $${V_T}\left( { = {{k...
GATE EE 2001
A current amplifier has an input resistance of $$10\Omega ,$$ an output resistance of $$10\,\,k\Omega $$ and a Current g...
GATE EE 2000
For the small signal $$BJT$$ amplifier shown in given figure. Determine at $$1$$ $$kHz$$ the following $$(a)$$ $$\,\,...
GATE EE 1999
For the $$JFET$$ amplifier shown in figure $$\mu = 100,\,{r_d} = 50k\Omega $$ $$(i)$$ Draw the $$AC$$ equivalent circu...
GATE EE 1992
Figure shows a common emitter amplifier $$(a)$$ Simplify the circuit by applying thevenin's theorem to biasing netw...
GATE EE 1991

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