Electronics Network and Lines Government Polytechnic 2010 Question Paper

Exam Board: Government Polytechnic
Question Paper Course: Diploma Hospital Management
Subject of Question Paper: Electronics Network and Lines
Time allotted: 3 Hours
Max. Marks: 70
Year of the exam paper: 2010
Question Paper Format: Text

Q.1 Give statement of Thevenin's Theorem. Prove it with necessary equations. Calculate IL in the given circuit using this theorem. 14

Q.2 (a) What is resonance? Get the equations for current at resonance & the resonance frequency for a series resonance circuit. Define bandwidth & selectivity. Draw the frequency response curve for this circuit. 07
(b) Explain Low pass filter. Get the equation of 'Cutoff Frequency' for constant K type 'T' section. Draw & explain the frequency response curve for this circuit. 07
OR
(b) Mention the disadvantages of constant K type filters. In m derived filters what is 'm'? Explain composite filters. 07

Q.3 (a) Get the equations for transforming 'T' type network into 'p' type network. 07
(b) Explain the nodal analysis with an example. 07
OR
Q.3 (a) Design a symmatrical p network if R0 =600 ohms and D =40 dB. 07
(b) Get the equation for ZOT for a standard symmetrical T-network. 07

Q.4 (a) Get the general equation for voltage & current at any point on transmission line. 07
(b) Explain active High Pass Filter with required equations. 07
OR
Q. 4 (a) Explain waveform distortions. Get the equation for condition for distortion less line. 07
(b) Design a constant K High-pass Filter T & p Section if Cutoff Frequency = 6 Khz & R0= 600 Ohms. 07

Q.5 (a) What is duality? Explain using a series R-L-C circuit & required equations. 07
(b) Explain Kirchoff's current & voltage laws with examples. 07
OR
Q.5 (a) Explain mutual inductance & get the equation for coefficient of coupling. 07
(b) Give differences between active & passive filters. 07 

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