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by Nareddula Rajeev Reddy (NRR)

3.Guide for Analog and Digital Electronics Questions and Answers PDF

#Source [Internet]: http://www.diginotes.in/index.html

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Q1. What is a multiplexer? Design a 4 to 1 multiplexer using logic gates. Write the truth table
and explain its working principle.
Q2. Construct 4:1 multiplexer using only 2:1 multiplexer.
Q3. Construct 8:1 multiplexer using only 2:1 multiplexer.
Q4. Design 16 to 1 multiplexer using 8 to 1 multiplexer and one 2 to 1 multiplexer.
Q5. Design 32 to 1 multiplexer using 16 to 1 multiplexer and one 2 to 1 multiplexer.
Q6. Mention the differences between decoder and demultiplexer.
Q7. (a) Realize Y A B B C ABC       using an 8 to 1 Multiplexer.
Q8. Implement the following Boolean functions using 4:1 multiplexer (MUX):

( ) ( , , , ) (0,1,2,4,6,9,12,14)
( ) ( , , ) (1,3,5,6)
Q9. Implement the Boolean function expressed by SOP:
f A B C D m ( , , , ) (1,2,5,6,9,12) using 8 to 1 MUX. 
Q10. Implement the Boolean function:
F A B C D m ( , , , ) (0,1,2,4,5,7,8,9) 

using 8 to 1 multiplexers. Draw the logic diagram and

explain the operation. Additional gates can be used if required.
Q11. Realize the following Boolean function:
P f w x y z   ( , , , ) (0,1,5,6,7,10,15) using (i) 16:1 MU  X (ii) 8:1 MUX (iii) 4:1 MUX 0 1 2 3 4 5 6 7
Q12. Design and implement BCD to excess-3 code converter using four 8:1 multiplexers. Take
MSB ‘A’ as map entered variable(input variable) ‘BCD’ lines as select lines, assuming
f(A,B,C,D) as BCD input.
Q13. Realize a logic circuit for octal to binary encoder.
B0 Q14. Implement a full adder using a 3 to 8 decoder.
Q14. Implement a full adder using a 3 to 8 decoder.
Q15. Implement full adder using IC 74138
Q16. Implement 3 bit binary to gray code conversion by using IC 74139.
Q17. Design a priority encoder for a system with a 3 inputs, the middle bit with highest priority
encoding to 10, the MSB with the next priority encoding to 11, while the LSB with least priority
encoding to 01.
Q18. Design a 4 to 16 line decoder using 2 to 4 line decoder which has the active low outputs as
active low enable input. Explain its operation.
Q19. Write the comparisons between PLA and PAL.
Q20. Design 7-segments decoder using PLA.
Q21. Implement the following function using PLA:
Q22. Draw the PLA circuit and realize the Boolean functions:
Q23. Describe the working principle of 3:8 decoder. Design a circuit that realizes the following
functions using a 3:8 decoder and multi input OR gates.
1 2 ( ) ( , , ) (1,3,7) (ii) ( , , ) (2,3,5) i F A B C m F A B C m    
Q24. What is magnitude comparator? Design one bit comparator and write the truth table, logic
circuit using basic gates.
Q25. What is parity generator? Explain with an example.
Q26. What is parity checker? Explain with example.
Q27. Give state transition diagram of SR, D, JK and T flip flops.
Q28. Obtain the characteristic equation of SR, JK, D and T flip flops.
Q29. Explain the operation of a gated SR latch with a logic diagram and truth table.
Q30. Explain the operation of edge triggered ‘SR’ flip flop with the help of a logic diagram and
truth table. Also draw the relevant waveforms.
Q31. Explain the operation of edge triggered ‘D’ flip flop with the help of a logic diagram and
truth table. Also draw the relevant waveforms.
Q32. Explain the working of pulse triggered JK flip flop with typical JK flip flop waveform.
Q33. Explain the working of Master Slave J K flip flops with logic diagram.
Q34. What is contact bounce? With neat diagram, explain the working principles of Switch De
bounce circuit.

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2.Guide for Analog and Digital Electronics Questions and Answers PDF

#Source [Internet]: http://www.diginotes.in/index.html

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Q1. What is Gate? State and prove De Morgan’s theorems.
Q2. Differentiate analog and digital signals.
Q3. Define (i) rise time (ii)fall time (iii)period (iv) frequency (v) duty cycle of a digital signal.
4. (i) Prove that duty cycle of a symmetrical waveform is 50%. (ii) What is the value of high
duty cycle (duty cycle H) if the frequency of a digital waveform is 5 MHz and the width of the
positive pulse is 0.05 μs? (iii) An asymmetrical signal waveform is high for 2ms and low for
3ms. Find Frequency, Period , Duty cycle low, Duty cycle high
Q5. Describe positive logic and negative logic. List the equivalences in positive and negative
logic.
Q6. Prove that (a) “Positive OR” logic is equal to “Negative AND” logic (b) “Positive AND”
logic is equal to “Negative OR” logic (c) “Positive NOR” logic is equal to “Negative NAND”
logic (d) “Positive NAND” logic is equal to “Negative NOR” logic
Q7. What is a universal gate? List the universal gates and prove their universalities.
Q8. Realize the XOR gate using (i) NAND gate (ii) NOR gate.
Q9. Implement the following functions using NAND gate only:
Q10. Implement the following functions using NOR gate only:
Q11. Define canonical Minterm form and canonical Maxterm form.
Q12. Express the function F=x+yz as the sum of its minterms and product of maxterms.
Q13. Express the function F=(x+yz)  ́ as the sum of its minterms and product of maxterms.
Q14, Convert the following 3-variable SOP to POS form.
(i) Σm(3,5,6,7) (ii) Σm(0,2,5,6)
Q15. Convert the following 4-variable POS to SOP form.
(i) ΠM(1,3,4,7) (ii) ΠM(0,1,2,4,10,13,15)
Q16. Use K-Map to simplify the following functions:
Q17, Simplify the Product of Sum expression below and provide the result in POS form.
Q18. Simplify the Product Of Sum expression below and provide the result in SOP form.
Q19. Find the minimal SOP and minimal POS of the following Boolean function using K-Map.
Q20. Reduce the following Boolean function using K-Map and realize the simplified expression
using NAND gates.
Q21. Simplify the following expressions using Karnaugh map. Implement the simplified circuit
using the gates as indicated:

( ) ( , , , ) (1,5,7,9,10,13,15) (8,11,14) using NAND gates.
(ii) ( , , , ) (0,1,2,4,5,6,8,9,12,13,14) using NOR gates.
Q22. Simplify the following using Quine McClusky minimization technique:
Q23. What are static hazards? How to design a hazard free circuit? Explain with an example.

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Guide for Analog and Digital Electronics Questions and Answers PDF

#Source [Internet]: http://www.diginotes.in/index.html

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Q1. Explain the construction and principle of operation of N-Channel and P-Channel Junction
Field Effect Transistor (JFET).
Q2. Explain the Characteristics of N-Channel and P-Channel Junction Field Effect Transistor.
Q3.Explain the construction and principle of operation of N-Channel and P-Channel Depletion
Metal Oxide Semiconductor Field Effect Transistor (DE-MOSFET).
Q.4 Explain the characteristics of N-channel DE-MOSFET.
Q5.Explain the construction and principle of operation of N-Channel and P-Channel
Enhacement Metal Oxide Semiconductor Field Effect Transistor (E-MOSFET).
Q.6 Explain the characteristics of N-channel E-MOSFET.
Q7.Mention the difference between JFET and MOSFET,
Q8. Discuss about the handling of MOSFET.
Q9. Discuss the application of Field Effect Transistors (FET).
Q.10 Explain the working of CMOS inverter device.
Q11. Figure below shows a biasing configuration using DE-MOSFET. Given that the saturation
drain current is 8mA and the pinch-off voltage is -2V, determine the value of gate-source
voltage, drain current and the drain-source voltage.
Q12. Design a voltage-divider–bias network using a DE-MOSFET with the supply voltage
VDD=16V, IDSS=10mA and VP = -5V to have a quiescent drain current of 5mA and gate voltage
of 4V. (Assume the drain resistor RD to be four times the source resistor RS).
Q13. Figure below shows a circuit using E-MOSFET. Given that the threshold voltage for the
MOSFET is 2V and ID (on) =6mA for VGS (on) =5V, determine the value of the operating point.
Q14. Explain the Astable Operation of multivibrator using 555 Timer IC.
Q15. Explain the Monostable Operation of multivibrator using 555 Timer IC.
Q16. Discuss the Ideal Opamp versus practical Opamp.
Q17. Discuss the performance parameters of operational amplifier.
Q18. Explain the Peak Detector Circuit.
Q19. Explain the following comparators:
(a) Zero crossing detector
(b) Comparator with reference
(c) Comparator with hysteresis
(d) Window comparator
Q20. Explain the Relaxation Oscillator using operational amplifier.
Q21. Explain the Active Filters.
Q22. Explain the non-linear amplifier.
Q23. Explain the current to voltage converter and the voltage to current converter.

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Contents

The File covers the following concepts...
• 1.1 Introduction
• 1.2 Basic concepts of OOPs
• 1.3 Java History
• 1.4 Java Feature
• 1.5 Comparison in Java and C++
• 1.6 Java Virtual Machine
• 1.7 Java Environment
• 1.8 Program
• 1.9 Summary

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List of IT Core Software Companies Offers above 10 Lakhs Salary in India

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List

No. Company, Place / Location Salary (Rupees in Lakhs Per Annum)
1 Soliton Technologies,  Bangalore 6.11
2 Musigma, Bangalore 8.00
3 Visual BI, Chennai 4.20
4 Voonik, Bangalore 7.55
5 Multicoreware Inc, Chennai 5.20
6 Zoho Corp, Chennai 4.80
7 Go Frugal, Chennai 6.00
8 Bosch, Coimbatore 4.20
9 Payoda Technologies, Coimbatore 7.00
10 Zifo Technologies, Bangalore 3.42
11 Odessa Technologies, Bangalore 12
12 Chalk Street, Bangalore 5.20
13 Athena health, Chennai 7.20
14 Volante Technologies, Chennai 5.55
15 Skava Systems, Coimbatore 3.88
16 Infoview, Chennai 4.50
17 Informatica, Bangalore 8.20
18 Logfuze, Chennai 3.50
19 Decathlon, Coimbatore 3.85
20 Wipro, Bangalore 3.75
21 Cognizant, Coimbatore 3.25
22 Amazon India, Bangalore 16.50
23 Mallow Tech, Karur 5.00
24 Accenture, Bangalore 3.82
27 Newgen Software, Bangalore 3.50
28 Chargebee, Chennai 7.00
29 ELGI Equipments, Coimbatore 4.50
30 OneGlobe Systems, Chennai 4.88
31 MindTree, Bangalore 3.80
32 Verizon India, Chennai 5.20
33 Virtusa India, Chennai 3.58
34 Asahi India, Gurgaon 4.80
35 Capgemini India, Bangalore 3.35
36 L&T Infotech, Chennai 3.80
37 Polaris Consulting, Chennai 3.80
38 IBS India, Trivandrum 3.36
39 JusPay, Chennai 10.00
40 Huawei Technologies, Bangalore 7.80
41 Citrisys Solutions, Chennai 3.50
42 Software AG, Bangalore 4.80
43 CGVAK Software, Coimbatore 3.00
44 Commvault Systems, Chennai 7.50
45 Thyrocare, Bangalore 3.54
46 Jay Jay Mills, Tirupur 3.80
47 Aspire Systems, Chennai 4.55
48 Nikita Constructions, CBE 3.80
49 ACC Cements, CBE 2.78
50 SAP Labs, Bangalore 10.00
51 iClynic, Bangalore 3.58
52 Placement Season, Coimbatore 3.55
53 Data Patterns India, Chennai 3.80
54 LMW, Coimbatore 3.45
55 Fractal Analytics, Bangalore 7.50
56 Multivsion, Chennai 3.25
57 Cotton Concepts, Tirupur 3.80
58 Avnet India, Bangalore 6.50
59 Oxylane Group, Chennai 4.25
61 Maysoft India, Chennai 3.20
62 NY Systems, Cochin 3.80
63 HP India, Bangalore 4.20
64 V-Marsh, Mumbai 3.85
65 Must Garments, Dhaka 5.90
66 Greatwest Global, Bangalore 4.50
67 Sify Corp, Chennai 3.80
68 Upper Edge, Coimbatore 3.25
69 Torry Harris, Bangalore 3.25
70 Owler Inc, Coimbatore 4.55
71 Tessolve India, Bangalore 3.80
72 RSJ Inspection, Bangalore 3.20
73 Squash Apps, Coimbatore 2.88
74 Kalycito Embedded, Coimbatore 3.21
75 Kitex Garments, Cochin 3.20
76 CSS Corp, Chennai 4.11
77 Caliber Embedded, Bangalore 3.80
78 Federal infotech, Coimbatore 3.80
79 Best Garments, Tirupur 3.80
80 TATA Digital Health, Bangalore 8.20
81 Greeno Tech, Coimbatore 3.25
82 Christy Group, Erode 3.80
83 VWR Labs, Coimbatore 3.22
84 Embed UR, Chennai 5.50
85 Brakes India, Chennai 4.25
87 Manhattan Associates, Bangalore 5.60
88 GTN Engineering, Bangalore 3.25
89 Caliber Interconnect, Coimbatore 2.78
90 Muratec Machinery, Coimbatore 3.20
91 Nippon Seiki, Chennai 3.54
92 TATA Advanced Systems, HYD 5.25
94 Ahill Exports, Tirupur 3.80
95 eLitumus Consulting, Bangalore 3.25
96 Techruit, Chennai 3.25
97 L&T Construction, Chennai 4.25
98 HP Enterprise, Bangalore 4.25
99 UniTech Transfer, Germany 23.00
100 Sanmar India, Chennai 4.00
101 Telestratum Networks, Bangalore 5.00
102 EDS Technologies, Bangalore 3.75
103 Huawei Technologies, Bangalore 7.80
104 Informatica, Bangalore 8.20
105 Page Industries(Jockey) 3.80
106 Kaspon Tech works Pvt. Ltd., 3.80
107 Jagan Research Associates(JRA) 5.00
108 Syrematech 3.00
111 Delphi TVS-chennai 4.50
112 Fresh Desk 4.50
113 Media dot net 5.20
114 Powerup Cloud 3.60
115 Mehala Machines 3.70
116 Hi-Tech Calibaration services-chennai 3.70
117 KIROLOSKAR ELECTRICAL 3.50
118 Carona Apparaels 3.70
119 Intertech Testing - thriupur 3.70
120 Anugraha fashions - Thirupur 3.70
121 L&W construction-Banglaore 3.60
122 Sinetech-Coimbatore 3.70
123 Cameron-Coimbatore 4.50
124 Emrill-Dubai 6.00
125 Ventura Omnitech-Coimbatore 3.70
126 Sakthi Auto Componenet-Perundurai 3.70
127 Keerthi Pumps-Coimbatore 3.70
128 Ravilla Aero Space-Coimbatore 3.80
129 TVS Logistics 3.80
130 Mark Acquistics 3.80
131 CEI-Chennai 3.80
132 Newgen Software, Bangalore 4.00
133 Amphere Vehicles 3.80
134 Episource-Chennai 3.80
135 KG Denim-coimbatore 3.80
136 Neotech medical systems,chennai 3.80
137 Global Analytics, BGL 11.00
138 Unmetric Inc, Chennai 8.00
139 Infomindz RnD, Malaysia 12.00

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