Download PTU B-Tech EEE 2020 Dec 3rd Sem 76381 Electrical Circuit Analysis Question Paper

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B.Tech. (EE) (2018 Batch) (Sem.-3)

ELECTRICAL CIRCUIT ANALYSIS

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Subject Code : BTEE-301-18

M.Code : 76381

Time : 3 Hrs. Max. Marks : 60

INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.

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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

Answer briefly :

Q1 What are duality Networks?

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Q2 Express Z-parameters in terms of Y-parameters.

Q3 State and derive maximum power transfer theorem.

Q4 Two parallel branches Z₁ and Z₂ take the current I₁ and I₂ as follows :
I₁=3.15?68°A; I₂=12?-45°A, find the complex power drawn from 17V supply.

Q5 Explain the importance of pole and zeroes in a transfer function.

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Q6 Define : series and parallel resonances.

Q7 Find total inductance of three inductances in additive series combination with L1=2H, L2=3H and L3=5H, the mutual inductances are M12=1H, M13=2H and M23=0.5H.

Q8 A series circuit has 4O, 5O, 9O and 10O resistors. Which resistor has the most voltage across it? Justify your answer.

Q9 Give the propagation constant of a symmetrical T-section and p-section.

Q10 Define transfer and driving point impedance of a 2-port network.

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SECTION-B

Q11 Determine frequency response in terms of resonant peak magnitude and corresponding frequency of a system having following closed loop transfer function : C (s) = 1/(s²+s+1)

Q12 Find the frequency at which a prototype T-section low-pass filter having cut-off frequency f_c have an attenuation of 15dB.

Q13 Determine the current in the 5O resistor for the circuit shown using mesh analysis of Fig. 1.

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This download link is referred from the post: PTU B.Tech Question Papers 2020 December (All Branches)