Tuesday, January 31, 2023

Dr. A.P.J. Abdul Kalam University BE II SEM (CE/EE/ME) Fundamentals of Electronics Engineering [EC110T] June 2021 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Engineering

Second Semester Main Examination, June-2021

Fundamentals of Electronics Engineering [EC110T]

Branch: CE/EE/ME

Time: 3:00 Hrs ____ Max Marks 70

Note: 1. Attempt any five questions.

2. Answer should be precise & to be point only.

3. Assume suitable data if necessary & state them clearly.

Q.1 (a) Describe with suitable sketch the frequency modulation process.

(b) Explain guided and unguided transmission channel used in

communication system.

Q.2 (a) Explain Basic and universal logic gates with symbol and truth table?

(b) Define real and complex exponential signal.

Q.3 (a) Define energy and power signal.

(b) Explain Extrinsic and intrinsic types of semiconductor?

Q.4 (a) Describe forward and reverse biased V-I characteristics of Zener diode.

(b) Describe full wave rectifier with suitable circuit diagram.

Q.5 (a) Explain all types of the Clipper circuit with digram.

(b) Explain Gray code with example.

Q.6 (a) What are complements? Define 9s, 10s, 15s and 16s complement.

(b) Explain XOR and XNOR logic gates with symbol and truth table?

Q.7 (a) Describe Boolean algebra and its related all types of Law.

(b) Explain signum and sinc function with suitable example.

Q.8 (a) What do you mean by signals? Explain its classification?

(b) What is communication system? Explain with block diagram?

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