Wednesday, September 26, 2012
Roll No. .................
Total No. of Questions : 13] [Total No. of Pages : 02
Paper ID [A2008]
(Please fill this Paper ID in OMR Sheet)
IBST 203(O) (Sem. - 2nd)
Time : 03 Hours Maximum Marks : 75
Instruction to Candidates:
1) Section - A is Compulsory.
2) Attempt any Nine questions from Section - B.
Section - A
Q1) (15 x 2 = 30)
a) Define the term semi-conductor.
b) What is the relationship between resistance, current and voltage?
c) What is the use of diode?
d) What is the difference between PNP and NPN transistor?
e) List two applications of transistors.
f) What do you understand by the term band structure?
g) What do you understand by the term valence band?
h) What is the working principle of oscillator?
i) What is the role of amplifiers in electronic devices?
j) Define the term ripple voltage.
k) How would adding a 20-Ω resistor in parallel with a 100-Ω resistor change the reading on an ammeter?
l) When measuring DC voltage across a device with a multimeter, the meter indicates 0 volts? What is one possible explanation for this reading?
m) List examples of passive electronic components.
n) List the advantages of resistive voltage divider.
o) What devices are used to convert direct current to alternating current and vice-versa?
Section - B
(9 x 5 = 45)
Q2) Discuss in detail energy bands in solids.
Q3) Explain the significance of various amplifiers in detail.
Q4) What is Bipolar Junction Transistor? List applications of BJT.
Q5) Discuss working principle of a P-N junction diode. Also show its characteristics and mention some of its applications.
Q6) A germanium diode has a saturation current of 10–8 A. Calculate junction current for a forward bias of 0.40 volts and at 300° K.
Q7) Explain in detail diode as a rectifier.
Q8) Discuss the working of transistor as an amplifier.
Q9) Explain in detail with a suitable example resistive voltage divider.
Q10)Comment on the statement “Inductive Reactance is a function of frequency”.
Q11)Discuss basic circuit design with example.
Q12)Write a short note on semi-conductor devices.
Q13)Discuss the working of transistor as an oscillator.
punjabtechnicaluniversity.blogspot.in Roll No......................... ... Total No. of Questions : 07] ...
Roll No……….. Total No. of Questions: 07 B.Com. (Sem.-1 st ) FINANCIAL ACCOUNTING Subject Code: BCOP-101 Paper ID: [B1101] ...
punjabtechnicaluniversity.blogspot.in Click Here for Syllabus of B-Tech 1st Year . http://ptu.ac.in/userfiles/file/engg_syllab/1st_and_...
Business Organisation and Management, Question Paper of B.Com 1st Semester,Download Previous Years Question Paper 2Roll No…….. Total No. of Questions: 07 B.Com (Sem.-1 st ) BUSINESS ORGANIATION AND MANAGEMENT Subject Code: BCOP-102 (2011 &a...
Roll No……. Total No. of Questions:07 B.COM (Sem.-1 st ) BUSINESS MATHEMATICS SUBJECT CODE: BCOP-104 (2011 Batch) PAPER ID: ...
punjabtechnicaluniversity.blogspot.in Roll No. ...................... Total No. of Questions : 13] ...
punjabtechnicaluniversity.blogspot.in Master Of Technology (M-Tech) Syllabus SYLLABUS FOR MASTER OF TECHNOLOGY (M-Tech) Br...
punjabtechnicaluniversity.blogspot.in Click Downlink for Dowload of Scheme and Syllabus of B.Com. Professional Batch 2011onwards ht...
B.Sc. IT (402) (S05) / 102 (New) (Sem. - 4th) BASIC MATHEMATICS – I, Punjab Technical University, PTU, Question paperpunjabtechnicaluniversity.blogspot.in Roll No. ................. Total No. of Questions : 13] ...
punjabtechnicaluniversity.blogspot.in Roll No . ............ Total No. of Questions : 07) ...