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GATE ECE

FET and MOSFET

Analog Circuits

Previous Years Questions

Marks 1

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In the MOSFET amplifier of the figure the signal output V1 and V2 obey the relationship ...
GATE ECE 1998
An n-channel JFET has IDSS = 1 mA and Vp = -5 V. Its maximum transconductance is ______
GATE ECE 1995
The transit time of a current carriers through the channel of an FET decides its ____________characteristics.
GATE ECE 1994

Marks 2

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The ac schematic of an NMOS common-source stage is shown in the figure below, where part of the biasing circuits has bee...
GATE ECE 2013
An n-channel depletion MOSFET has following two points on its ID - VGS curve: (i)VGS = 0 at Id = 12 mA and (ii)VGS = -...
GATE ECE 2006
For an n-channel MOSFET and its transfer curve shown in the figure, the threshold voltage is ...
GATE ECE 2005
Given $${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$ ID and VDS under DC conditions are respectiv...
GATE ECE 2005
Given $${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$ Transconductance in milli-Siemens (mS) and v...
GATE ECE 2005
Given $${r_d} = 20K\Omega ,\,\,{I_{DSS}}\, = \,10mA,\,\,{V_P} = - 8V$$ Zi and Zo of the circuit are respectively ...
GATE ECE 2005
The action of a JFET in its equivalent circuit can be best represented as a
GATE ECE 2003
Consider the following statements in connection with the CMOS inverter in the Figure. Where both the MOSFETS are of enha...
GATE ECE 2002
The JFET in the circuit shown in fig. has an IDSS = 10mA and Vp = -5V. The value of the resistance Rs for a drain curren...
GATE ECE 1992
An n-channel JFET has a pinch-off voltage of Vp = -5V. VDS(max) = 20V and gm = 2mA/V. The minimum 'ON' resistance is a...
GATE ECE 1992

Marks 5

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A JEFT with VP = -4V and IDss = 12mA is used in the circuit shown in Fig. Assuming the device to be operating in satu...
GATE ECE 1996
In the JFET circuit shown in Fig assume that R1||R2 = 1 M$$\Omega $$ and the total stray capacitance at the output to ...
GATE ECE 1995
In the MOSFET amplifier shown in the fig. below, the transistor has $$\mu \,\, = \,\,50,\,\,{r_d}\,\, = \,\,10\,K\Omega ...
GATE ECE 1994

Marks 8

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(a) Specify the type of the negative feedback in the JFET amplifier shown in Fig. (b)Calculate the voltage gain (V0/Vi)...
GATE ECE 1987

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