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1

GATE EE 2005

MCQ (Single Correct Answer)
Assume that the threshold voltage of the $$N$$-channel $$MOSFET$$ shown in figure is $$0.75$$ $$V.$$ The output characteristics of the $$MOSFET$$ are also shown

The Transconductance of the $$MOSFET$$ is

A
$$0.75$$ $$mS$$
B
$$1$$ $$mS$$
C
$$2$$ $$mS$$
D
$$10$$ $$mS$$
2

GATE EE 2005

MCQ (Single Correct Answer)
Assume that the threshold voltage of the $$N$$-channel $$MOSFET$$ shown in figure is $$0.75$$ $$V.$$ The output characteristics of the $$MOSFET$$ are also shown

The voltage gain of the amplifier is

A
$$+5$$
B
$$-7.5$$
C
$$+10$$
D
$$-10$$
3

GATE EE 2005

MCQ (Single Correct Answer)
The common emitter amplifier shown in the figure is biased using a $$1mA$$ ideal current source. The approximate base current value is_____.
A
$$0\,\mu A$$
B
$$10\,\mu A$$
C
$$100\,\mu A$$
D
$$1000\,\mu A$$
4

GATE EE 2004

MCQ (Single Correct Answer)
The value of $$R$$ for which the $$PMOS$$ transistor in Figure. $$Q$$ $$63$$ will be biased in linear region is
A
$$220\,\Omega $$
B
$$470\,\Omega $$
C
$$680\,\Omega $$
D
$$1200\,\Omega $$

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