ANALOG & DIGITAL ELECTRONICS

YEAR 2012 ONE MARK

MCQ 8.1 In the sum of products function ( , , ) ( , , , ),f X Y Z 2 3 4 5/ the prime implicants are(A) ,XY XY (B) , ,XY X Y Z XYZ

(C) , ,XYZ XYZ XY (D) , , ,XYZ XYZ XY Z XYZ

MCQ 8.2 The i -v characteristics of the diode in the circuit given below are

i . , .

.

A V

A V

v v

v500

0 7 0 7

0 0 7<

$*

The current in the circuit is(A) 10 mA (B) 9.3 mA

(C) 6.67 mA (D) 6.2 mA

MCQ 8.3 The output Y of a 2-bit comparator is logic 1 whenever the 2-bit input A is greater than the 2-bit input B . The number of combinations for which the output is logic 1, is(A) 4 (B) 6

(C) 8 (D) 10

MCQ 8.4 Consider the given circuit

CHAP 8 ANALOG & DIGITAL ELECTRONICS PAGE 421

MCQ 8.7 The circuit shown is a

(A) low pass filter with ( )

/rad sfR R C

1dB3

1 2+

(B) high pass filter with /rad sf R C1

dB31

(C) low pass filter with /rad sf R C1

dB31

(D) high pass filter with ( )

/rad sfR R C

1dB3

1 2+

YEAR 2011 ONE MARK

MCQ 8.8 A low-pass filter with a cut-off frequency of 30 Hz is cascaded with a high pass filter with a cut-off frequency of 20 Hz. The resultant system of filters will function as(A) an all pass filter

(B) an all stop filter

(C) an band stop (band-reject) filter

(D) a band pass filter

MCQ 8.9

The CORRECT transfer characteristic is

CHAP 8 ANALOG & DIGITAL ELECTRONICS PAGE 427

MCQ 8.21 Which of the following circuits is a realization of the above function F ?

YEAR 2009 ONE MARK

MCQ 8.22 The following circuit has a source voltage VS as shown in the graph. The current through the circuit is also shown.

GATE Study Material Analog AndDigital Electronics (Electrical

Engineering)

Publisher : Faculty Notes Author : Panel Of Experts

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