Download PTU B-Tech ECE 2020 Dec 3rd Sem 57585 Network Analysis And Synthesis Question Paper

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Total No. of Pages : 03
Total No. of Questions : 18

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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.

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SECTION-A

Answer briefly :

1. State various properties of LC networks.
2. Find convolution between u(t) and e^-tu(t).
3. Given F(s) = (s+1) / ((s+2)(s+4)), find f(t).

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4. What is the relation between transfer function of a system and impulse response.
5. Check the positive realness of F(s) = (s+1)(s+3) / s
6. Differentiate between: Network Analysis and Network Synthesis. Name the methods to solve them.
7. Give the reason: why a system is stable if poles are on left hand side of s-plane?
8. Explain the relation between step, ramp and impulse function.

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9. Define all parameters of the characteristic output of a pass band filter.
10. Find condition for a 2-port network using Z and Y-Parameters to be reciprocal

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SECTION-B

11. In the given circuit find current in all resistors using nodal analysis in Fig. 1.
    

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    FIG.1
12. Find h-parameters of the network of Fig. 2.
    
    FIG.2

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13. Find driving point admittance and transfer admittance for bridged T-network shown in Fig. 3 with a 2O load resistor connected across port 2.
    
    FIG.3
14. Determine the current produced by each battery in the circuit of Fig. 4.
    
    

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    FIG.4
15. Classify filters and analyze any one type of filter in detail.

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SECTION-C

16. Synthesize a network using Foster-I and Foster -II forms for the impedance function : Z(s) = s(s²+9) / (s²+4)

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17. Design an m-derived T and p network low pass filter with design impedance of 600O and cut off frequency of 1.8 KHz and infinite attenuation at 2 KHz.
18. a) Define Composite filters.
    b) Find Laplace transform of Fig. 5
    
    FIG.5

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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.

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