Download PTU B.Tech 2020 March EE 3rd Sem Circuit Theory Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech EE (Electrical Engineering) 2020 March 3rd Sem Circuit Theory Previous Question Paper

1 | M-57092 (S2)-835
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(EE) (2012 Onwards)/(Electrical & Electronics Engg.) (2011 Onwards)
B.Tech. (Electronics & Electrical Engg.) (2012 to 2017)
(Sem.?3)
CIRCUIT THEORY
Subject Code : BTEE-301
M.Code : 57092
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a. Differentiate between periodic and singularity voltages.
b. State Norton's theorem.
c. What do you mean by doublet? Explain.
d. What do you mean by transient response? Explain.
e. Discuss the significance of circuit theory.
f. What do you mean by singlet? Explain.
g. What do you mean by propagation constant? Explain.
h. Explain passband and stopband with respect to filters.
i. What do you mean by the term composite filter? Explain.
j. Why network synthesis is required? Explain.
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1 | M-57092 (S2)-835
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech.(EE) (2012 Onwards)/(Electrical & Electronics Engg.) (2011 Onwards)
B.Tech. (Electronics & Electrical Engg.) (2012 to 2017)
(Sem.?3)
CIRCUIT THEORY
Subject Code : BTEE-301
M.Code : 57092
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
1. Answer briefly :
a. Differentiate between periodic and singularity voltages.
b. State Norton's theorem.
c. What do you mean by doublet? Explain.
d. What do you mean by transient response? Explain.
e. Discuss the significance of circuit theory.
f. What do you mean by singlet? Explain.
g. What do you mean by propagation constant? Explain.
h. Explain passband and stopband with respect to filters.
i. What do you mean by the term composite filter? Explain.
j. Why network synthesis is required? Explain.
2 | M-57092 (S2)-835
SECTION-B
2. State and prove Maximum power transfer theorem.
3. What do you mean by pole and zero? Discuss its important features and restrictions.
4. Design T section of constant k high pass filter having nominal characteristic impedance
of 600 ohm, cut-off frequency is 10 kHz. Also find its characteristics impedance and
phase constant.
5. Define Laplace transform. Find the Laplace transform of sin ?t u(t-t0)
6. What is the need of a filter? Discuss the classification of filters in detail.

SECTION-C
7. Find the Thevenin's and Norton's equivalent of the circuit shown in figure, at the
terminals A & B.

FIG.1
8. Find the first and second Foster or Cauer forms of the function :
( 1) ( 3)
( )
( 2)
s s
Z s
s s
? ?
?
?

9 Discuss the following
a. Convolution theorem
b. Design of m derived low pass filter

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
8 ?
A
B
4 ?
+
?
6V
+
?
12V
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