Electronic & Tele Communication System (September – 2013) [IDOL - Old Course | Question Paper]

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B.Sc.IT: Semester – II

[Electronic & Tele Communication System]

Question Paper (September – 2013) [Old Course]

Time: 3 Hours
Total Marks: 100

N.B.:    (1) Questions No. 1 is Compulsory.
             (2) Answer any four questions from the remaining.
             (3) Assume suitable data if needed.

Q.1 Write Short Note On: (20 Marks)

(A) Composite Video Signal

(B) LED (Light Emitting Diode)

(C) Superposition Theorem

(D) Oscillator

Q.2 Attempt The Following Questions: (20 Marks)

(A) What is the difference between AM (Amplitude Modulation) and FM (Frequency Modulation)?

(B) List and explain the types of Digital Modulation Techniques.

Q.3 Attempt The Following Questions: (20 Marks)

(A) What is a Balanced Modulation? Explain in detail using Diode or FET?

(B) Explain DC Amplifier with neat diagram.

Q.4 Attempt The Following Questions: (20 Marks)

(A) Explain NPN and PNP Transistors and their characteristics.

(B) Compare Amplifier and Oscillator.

Q.5 Attempt The Following Questions: (20 Marks)

(A) Draw and explain AM Radio receiver.

(B) What are the advantages of SSB (Single Side Band) over AM (Amplitude Modulation).

Q.6 Attempt The Following Questions: (20 Marks)

(A) Explain P-N Junction Diode. Explain Forward Biasing and Reverse Biasing of a Diode.

(B) Explain the working of Full Wave Bridge Rectifier.

Q.7 Attempt The Following Questions: (20 Marks)

(A) Differentiate between TDM (Time Division Multiplexing) & FDM (Frequency Division Multiplexing).

(B) Differentiate between RC Oscillator and LC Oscillator.

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