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Test: Analog & Digital Electronics - 2 - Electrical Engineering (EE) MCQ


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20 Questions MCQ Test GATE Electrical Engineering (EE) Mock Test Series 2025 - Test: Analog & Digital Electronics - 2

Test: Analog & Digital Electronics - 2 for Electrical Engineering (EE) 2024 is part of GATE Electrical Engineering (EE) Mock Test Series 2025 preparation. The Test: Analog & Digital Electronics - 2 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Analog & Digital Electronics - 2 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Analog & Digital Electronics - 2 below.
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Test: Analog & Digital Electronics - 2 - Question 1

An amplifier has an open-loop gain of 100, an input impedance of 10 kΩ and an output impedance of 200 Ω. A feedback factor of 0.99 is connected to the amplifier in a voltage series feedback configuration. The new input and output impedances respectively are

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 1

Test: Analog & Digital Electronics - 2 - Question 2

Following shown is an oscillator circuit.

Q.

Which of the following is a correct statement? It is a

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 2

It is a RC phase-shift oscillator

Test: Analog & Digital Electronics - 2 - Question 3

Following shown is an oscillator circuit.

Q.

The gain of the amplifier must exceed _____________   to satisfy the conditions of oscillation.

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 3

Three section RC network causes the output to be 1/29 of the input, the gain of the amplifier must exceed 29.

Test: Analog & Digital Electronics - 2 - Question 4

Without feedback, the voltage gain is 40 and distortion is 10%, if feedback factor of -0.01 (negative feedback) is given to the amplifier, the distortion will be

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 4

Test: Analog & Digital Electronics - 2 - Question 5

An op-amp is used in the circuit as shown in the below figure. Current l0 is

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 5

Test: Analog & Digital Electronics - 2 - Question 6

For the circuit shown in the below figure, the output F will be

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 6

For XOR gate if both the input are same, output is zero.

Test: Analog & Digital Electronics - 2 - Question 7

Match List-1 (Types of gates) with List-ll (Values of propagation delay) and select
the correct answer-

Codes:
A B C D

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 7

ECL are fastest and N-Mos devices are slowest

Test: Analog & Digital Electronics - 2 - Question 8

The Booiean expression for the output Y in the logic circuit is

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 8

Test: Analog & Digital Electronics - 2 - Question 9

Consider the following:
Any combinational circuit can be built using
1.    NAND gates
2.    NOR gates
3.    EX - OR gates
4.    Multiplexers

Which of these are correct?

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 9

NAND & NOR are universal gates, so along with MUX they can be used to implement any combinational circuit.

Test: Analog & Digital Electronics - 2 - Question 10

A 3-to-8 decorder is shown below:

All the output lines of the chip will be high, when all the inputs 1,2 and 3

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 10

Outputs are active low, so all the output lines of the chip will be high, when chip will
be disabled i.e., G,= 0 and G2 = 1.

Test: Analog & Digital Electronics - 2 - Question 11

The simplified form of a logic function

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 11

Test: Analog & Digital Electronics - 2 - Question 12

An n-bit A/D converter is required to convert analog input in the range 0 - 5V to an accuracy of 10 mV. The value of n should be

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 12

Given minimum analog input (to be converted accurately) = 10 mV => Maximum step size should be = 10 mV as Maximum voltage = (Step size), (no. of steps)

Test: Analog & Digital Electronics - 2 - Question 13

Consider the following statements in respect of ECL gate:
1.    Its switching speed is high
2.    It provides OR and NOR logic operations
3.    Its power dissipation is small as compared to other logic gates
4.    Its logic levels are compatible with other logic family gates

Which of these statements are correct?

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 13

Its logic levels are not compatible with CMOS (15V) logic family gates.

Test: Analog & Digital Electronics - 2 - Question 14

In the circuit as shown in figure below, assuming initially Q0 = Q1 = 0. Then the states of Q0 and Q1 immediately after the 33rd pulse are

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 14

Test: Analog & Digital Electronics - 2 - Question 15

The three-stage Johnson-Ring Counter as shown below is clocked at a constant frequency of fc from the starting state of Q0 Q1Q2 = 1 0 1. The frequency of outputs Q Q1  Q2  will be

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 15

The 3 stage Johnson ring counter at initial condition 101. When CLK pulses are applied it comes into the lock out stage. So at lock out stage o/p is repeated upto n CLK pulse at which frequency of o/p is 

Test: Analog & Digital Electronics - 2 - Question 16

Which one of the following statements is not correct? Conversion of EXCESS-3 code to BCD can be achieved by using

Test: Analog & Digital Electronics - 2 - Question 17

Match List-1 (Circuit Symbols) with List-ll (Nomenclature) and select the correct answer using the codes given below:

List-1    List-ll

Codes:
A B C D

Test: Analog & Digital Electronics - 2 - Question 18

It is required to construct a 2n-to-1 multiplexer by using 2-to-1 multiplexers only. How many of 2-to-1 multiplexers are needed? 

Test: Analog & Digital Electronics - 2 - Question 19

Consider the following circuit:

Which one of the following gives the function implemented by the MUX-based diaital circuit?

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 19

Test: Analog & Digital Electronics - 2 - Question 20

Consider the following multiplication: (10w 1z)2 x(15)10 = (y0 10 11 001)2 Which one of the following gives appropriate values of w, y and z?

Detailed Solution for Test: Analog & Digital Electronics - 2 - Question 20

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