GATE ECE 2008 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

For the circuit shown in the following figure, transistors M1 and M2 are identical NMOS transistors. Assume that M2 is in saturation and the output is unloaded GATE ECE 2008 Electronic Devices and VLSI - IC Basics and MOSFET Question 30 English

GATE ECE 2008 Electronic Devices and VLSI - IC Basics and MOSFET Question 30 English

The current I_x is related to I_bias as

$$I_x\;=I_{bias}\;+\;I_s$$

$$I_x\;=I_{bias}\;$$

$$I_x\;=I_{bias}\;-\;I_s$$

$$I_x\;=I_{bias}\;\left(V_{DD}\;-\frac{V_{out}}{R_E}\right)$$

GATE ECE 2008

MCQ (Single Correct Answer)

-0.6

The measured transconductance g_m of an NMOS transistor operating in the linear region is plotted against the gate voltage V_G at constant drain voltage V_D. Which of the following figures represents the expected dependence of g_m on V_G?

GATE ECE 2008 Electronic Devices and VLSI - IC Basics and MOSFET Question 29 English Option 1

GATE ECE 2008 Electronic Devices and VLSI - IC Basics and MOSFET Question 29 English Option 2

GATE ECE 2008

MCQ (Single Correct Answer)

-0.3

All the four entries of $$2$$ $$x$$ $$2$$ matrix
$$P = \left[ {\matrix{ {{p_{11}}} & {{p_{12}}} \cr {{p_{21}}} & {{p_{22}}} \cr } } \right]$$ are non-zero and one of the eigen values is zero. Which of the following statement is true?

$${P_{11}}\,{P_{22}} - {P_{12}}\,{P_{21}} = 1$$

$${P_{11}}\,{P_{22}} - {P_{12}}\,{P_{21}} = - 1$$

$${P_{11}}\,{P_{22}} - {P_{21}}\,{P_{12}} = 0$$

$${P_{11}}\,{P_{22}} + {P_{12}}\,{P_{21}} = 0$$

GATE ECE 2008

MCQ (Single Correct Answer)

-0.3

The system of linear equations $$\left. {\matrix{ {4x + 2y = 7} \cr {2x + y = 6} \cr } } \right\}$$ has

a unique solution

no solution

an infinite no. of solutions

exactly two distinct solution.

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