MVN ECL100 Basics of Electronics MBA Previous Year Question Paper

Name of the College : MVN University
Department : Management Studies
Subject Code/Name : ECL-100-Basics of Electronics
Year : Jan.2014
Degree : MBA
Sem : I/II
Website : mvn.edu.in
Document Type : Previous Year Question Paper

Download Model Question Paper : https://www.pdfquestion.in/uploads/mvn.edu.in/3114-Basic-Electronics1.pdf

MVN Basics of Electronics Previous Year Question Paper

Time Allowed: 03 hours.
Maximum Marks: 100

Related : MVN University CSL102 Advanced C Programming B.Tech Question Paper : www.pdfquestion.in/3113.html

Instructions

Before answering the question paper the candidate should ensure that they have been supplied the correct question paper. Complaints in this regard, if any, shall not be entertained after the examination.
Note: Question No. 1 is Compulsory and attempt two questions from each section. All questions carry equal marks.

January 2014

1(a) What is Junction Capacitance in a diode? Also write the Diode Equation and explain each terms in the expression.
(b) Enumerate the features of a Transistor working in Common Base,Common Emitter and Common Collector.
(c) What is the Barkhausen Criteria for Sustained Oscillations?
(d) Show how a NOR Gate can be used as an XOR Gate.
(e) What are Lissajous Pattern?
(f) Derive the expression for Gain of a closed loop Op-Amp working in Non-Inverting Mode as well as Inverting Mode. [4+5+2+3+2+4=20]

SECTION – A :
2(a) Differentiate between Drift and Diffusion Currents? Derive the expression for Drift Current in a Semi-Conductor.
(b) What is Doping? How can we make an N-Type Semi-Conductor from an Intrinsic Semi-Conductor? What is the net electrical charge on an N-Type Semi-Conductor?
(c) Show the VI Characteristic of a Diode. Show in the graph the Cut-In Voltage and the Breakdown Voltage. Also explain these two terms.
(d) Explain Avalanche and Zener breakdown phenomenon. [8+4+4+4=20]
3(a) Draw the circuit diagram of a RC-Coupled Amplifier. Draw the Gain Bandwidth Characteristic. How the Lower and Upper Cut-Off Frequencies are obtained? Define Decibel. A 3-stage Amplifier has Voltage Gain of 10, 20 and 30 for each stage. Find the Voltage Gain and Gain in dB.
(b) Derive the expression for Gain of an Amplifier with Negative Feedback. What is the effect of Negative Feedback on Gain, Bandwidth, Input and Output Impedance of an Amplifier?
(c) Why transistor is known as “Transistor”?Define a Transistor. Derive the relationship between transistor[10+6+4=20]
4(a) What is Pizeo-Electric Effect? With the help of neat circuit diagram, explain the operation of Crystal oscillator. Draw its Equivalent circuit and explain it. Graphically show how does the reactance of a crystal varies with frequency.
(b) What is the Barkhausen Criteria for Sustained Oscillation? Draw and explain Weinn Bridge Oscillator. Also find out the criteria for Sustained Oscillation of a Weinn Bridge Circuit. [12+8=20]

January 2015

Subject – Digital Electronics
Subject Code: ECL-203
Time Allowed: 03 hours.
Maximum Marks: 100
Before answering the question paper the candidate should ensure that they have been supplied the correct question paper.
Complaints in this regard, if any, shall not be entertained after the examination.
Note: Attempt five questions. Question No. 1 is Compulsory and two questions from each section. All questions carry equal marks.
1.(a) Convert the decimal number 255 in the following forms- [8×2.5=20]
(i) BCD
(ii) Gray Code
(b) Prove that
(c) Implement the AND gate Expression using NAND Gate?
(d) Define Decoder & Encoder?
(e) What do you mean by Parity Checker Circuit?
(f) What is the difference between Latch & Flip Flop?
(g) Write the difference between SRAM and DRAM.
(h) What is the difference between Synchronous & Asynchronous Counters?

SECTION-A :
2.(a) Explain Hamming codes and also construct the Hamming code for 1011 using even and odd parity both. [2×10=20]
(b) Simplify the following four variable Boolean expressions using K-Map. Y= M (0,1,3,5,7,8,10,13,14)

3.(a) Design a 2-Bit Magnitude Comparator Circuit? [2×10=20]
(b) Design a Full adder circuit using two Half adder circuits?

4. Simplify the given expression using Quine McCluskey method. F(A,B,C,D)= m(0,1,2,8,10,11,14,15) [20]

SECTION-B :
5.(a) Design a synchronous Decade Counter [15]
(b) What is Race Around Condition? How it can be removed? [5]

6. Write Short notes on the following: [4×5=20]
(a) PAL
(b) PLA
(c) FPGA
(d) CPLDs

7. Design an Asynchronous sequential logic circuit for a given state transition diagrams: [20]