GATE ECE 2002 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2002

MCQ (Single Correct Answer)

-0.6

Consider the following statements in connection with the CMOS inverter in the Figure. Where both the MOSFETS are of enhancement type and both have a threshold voltage of 2V.

Statement 1: T₁ conducts when V_i $$ \ge \,2\,V$$.
Statement 2: T₁ is always in saturation when $${V_0}\, = \,0\,V$$.

Which of the following is correct?

GATE ECE 2002 Analog Circuits - FET and MOSFET Question 16 English

only Statement 1 is true

Only Statement 2 is true

Both the statements are true

Both the statements are FALSE

GATE ECE 2002

MCQ (Single Correct Answer)

-0.6

The circuit in the figure employs positive Feedback and is intended to generate sinusoidal oscillation. If at a frequency f$$_0$$, B(f)= $${{\Delta {V_f}(f)} \over {{V_0}(f)}} = {1 \over 6}\,\,\angle {0^0}$$ then to sustain oscillation at this frequency.

$${R_2}\, = \,5\,\,{R_1}$$

$${R_2}\, = \,6\,\,{R_1}$$

$${R_2}\, = {{{R_1}} \over 5}$$

$${R_2}\, = {{{R_1}} \over 6}$$

GATE ECE 2002

MCQ (Single Correct Answer)

-0.6

In a negative feedback amplifier using voltage - Series (i.e., voltage - sampling, series mixing) feedback

$${R_i}$$ decreases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ decreases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ increases and $${R_0}$$ decreases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

$${R_i}$$ increases and $${R_0}$$ increases
($${R_i}$$ and $${R_0}$$ denote the input and outout resistances respectively)

GATE ECE 2002

MCQ (Single Correct Answer)

-0.3

A 1 MHz sinusoidal carrier is amplitude modulated by a symmetrical square wave of period 100 µsec. Which of the following frequencies will NOT be present in the modulated signal?

990 kHz

1010 kHz

1020 kHz

1030 kHz

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