Veer Narmad South Gujarat University 2010-2nd Sem Certification MS-CIT RF-3955-56 - Electronics & Digital Communication B.Sc ( IT ) ( ) Final - Question Paper
RF-3955-56
B. Sc. (I.T.) (Sem. II) Examination April/May - 2010 Electronics & Digital Communication
[Total Marks : 70
Time : 3 Hours]
Instructions :
"x Seat No.:
6silq<3i Pwunkiofl SnwiA Hi qsq <KH=fl. Fillup strictly the details of signs on your answer book.
Name of the Examination :
B. Sc. (IT) (Sem. 2)
Name of the Subject:
Electronics & Digital Communication
-Section No. (1,2......): 1
Student's Signature
-Subject Code No.
(2) Write sections I and section II in separate sheet (with different subject code)
(3) Draw the figure and give example whenever necessary.
Answer following questions :
(1) Explain following definitions (any five):-
(i) Permeability
(ii) Modulation
(iii) Frequency
(iv) Electric current
(v) Magnetic field
(vi) capacitance
(2) Explain Insulator, conductor, N-type extrinsic semiconductor
6
2 Answer the following questions in detail (any two):- 12
(1) What is intrinsic semiconductor and explain PN-Junction diode with its biasing, (forward bias and reverse bias).
(2) Explain Zener diode as a voltage Regulator.
(3) Explain AC generator working principle and LDR.
3 Answer the following questions in detail (any two):- 12
(1) Explain bridge rectifier with the help of circuit diagram.
(2) Explain common emitter-cofiguration for transistor
(3) Explain Resistor, inductor, Transformer
Instructions :
syiqc-i Pi*unkil fa1ifti. SnwiA u* <KH=fl. Fillup strictly the details of signs on your answer book.
Name of the Examination :
B. Sc. (IT) (Sem. 2)
Name of the Subject:
Electronics & Digital Communication
-Section No. (1,2......): 2
Student's Signature
-Subject Code No.
RF-3955-56] 3 [ 200 ]
(3) Draw the figure and give example whenever necessary.
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| Earning: Approval pending. |
