Diploma-Diploma Electronics and Communication 3rd Sem Electronic Networks and Lines(Gujarat Technological University-2013)
Thursday, 29 August 2013 07:12anudouglas
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGG.- SEMESTER–III EXAMINATION – WINTER 2012
Subject code: 331103 Date: 04/01/2013
Subject Name: Electronic Networks and Lines
Time: 2:30 pm – 5:00 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is Authentic
Q.1 (a) Give statement of SUPERPOSITION theorem & Prove it with required equations.
07
(b) Prove THEVENIN theorem using appropriate circuit showing the calculations. 07
Q.2 (a) Explain Kirchhof’s law (both). 07
(b) Explain nodal analysis with required equations. 07
OR
(b) Explain MUTUAL INDUCTANCE & get the equation for “K”. 07
Q.3 (a) Define RESONANCE. Get the resonance frequency equation for a parallel resonance circuit. 07
(b) A series resonance circuit takes a maximum current of 0.2 A at 100 V, 50 Hz., if the voltage across capacitor is 200 V, Calculate for L , R & Q . 07
OR
Q.3 (a) Get the equation for characteristics impedance ZoT for a standerd ‘ T ‘ network. 07
(b) Define & get the relation between dB and NEPER. 07
Q.4 (a) Give classification of filters showing frequency response curves For each of them. 07
(b) Design ACTIVE LOW PASS filter & find the cutoff frequency if R= 10 ohms & C = 0.01 micro farad. 07
OR
Q. 4 (a) Compare active & passive filters.(any 7 points.) 07
(b) Design m – derived T section Low pass filter if fc =1000 Hz & very high attenuation at 1065 Hz .Use R0 = 500 ohms. 07
Q.5 (a) Explain distortions in a transmission line. 07
(b) Write short note on : SYMMATRICAL T ATTENUATOR. 07
OR
Q.5 (a) Explain loading of a telephone cable. 07
(b) Write short note on: PHASE EQUALISER. 07
| Earning: ₹ 6.05/- |
