GATE Electronics: Questions 71 - 75 of 271

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Question number: 71

» Digital Circuits » Number Systems; Combinatorial Circuits » Arithmetic Circuits, Code Converters, Multiplexers, Decoders and PLAs

Appeared in Year: 2008

MCQ▾

Question

The two numbers represented in signed 2’s complement form are P + 11101101 and Q = 11100110. If Q is subtracted from P, the value obtained in signed 2’s complement is

Choices

Choice (4) Response

a.

111111001

b.

1000001111

c.

11111001

d.

00000111

Question number: 72

» Digital Circuits » Sequential Circuits » Counters

Appeared in Year: 1999

MCQ▾

Question

The ripple counter shown in the given figure is works as a,

 The ripple counter with three J-K flip-flop

the Ripple Counter With Three J-K Flip-Flop

The ripple counter having three J-K flip-flops.

Choices

Choice (4) Response

a.

Mod-5 down counter

b.

Mod-3 up counter

c.

Mod-3 down counter

d.

Mod-5 up counter

Question number: 73

» Digital Circuits » Sequential Circuits » Latches and Flip-Flops

Appeared in Year: 2009

MCQ▾

Question

What are the counting states (Q1,Q2) for the counter shown in the figure below

The sequential circuit consists of J-K flip-flop

The Sequential Circuit Consists of J-K Flip-Flop

The sequential circuit consists of two J-K flip-flop with the synchronised clock pulse to get the sequence of output states.

Choices

Choice (4) Response

a.

00, 11, 01, 10, 00…

b.

01, 10, 11, 00, 01…

c.

11, 10, 00, 11, 10…

d.

01, 10, 00, 01, 10…

Question number: 74

» Digital Circuits » 8-Bit Microprocessor (8085) » Memory and I-O Interfacing

Appeared in Year: 2004

MCQ▾

Question

The number of memory cycles required to execute the following 8085 instructions

I LDA 3000 H

II LXI D, FOF1H would be

Choices

Choice (4) Response

a.

2 for I and 2 for II

b.

3 for I and 4 for II

c.

4 for I and 3 for II

d.

3 for I and 3 for II

Question number: 75

» Digital Circuits » Data Converters » Sample and Hold Circuits, ADCs and DACs

Appeared in Year: 2001

MCQ▾

Question

For the ring oscillator shown in the figure, the propagation delay of each inverter is 100 Pico sec. What is the fundamental frequency of the oscillator output

The containing 5 diodes which are connected in series

The Containing 5 Diodes Which Are Connected in Series

The figure containing 5 diodes in series to find the fundamental frequency.

Choices

Choice (4) Response

a.

2 GHz

b.

1 GHz

c.

10 MHz

d.

100 MHz

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