Manipal University 2007 B.E Biomedical Engineering THIRD SEMESTER MAKE-UP S - Question Paper
THIRD SEMESTER B.E. DEGREE MAKE-UP exams January 2007
SUBJECT: NETWORK ANALYSIS (BME 203)
CT$TT5T 91 gi
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MANIPAL INSTITUTE OF TECHNOLOGY
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INSPIRED BY LIFE
(A Constituent Institute of MAHE - Deemed University) Manipal - 576 104
THIRD SEMESTER B.E. DEGREE MAKE-UP EXAMINATIONS January 2007
SUBJECT: NETWORK ANALYSIS (BME 203)
(REVISED CREDIT SYSTEM)
Tuesday, January 09, 2007: 9.00 a.m..- 12.00 noon
MAX. MARKS: 100
TIME: 3 HOURS
Instructions to Candidates:
1. Answer any FIVE full questions.
2. Draw labeled diagram wherever necessary
(A) Find the equivalent resistance between XY in the network of Fig 1.A 08
(B) For the network shown in Fig 1.B show that the equivalent network is replaced 08 by V0=( Vi/2) (1+a+b-ab) and Z0 = (3-b)/2 .
(C) Explain the concept of Maximum Power Transfer Theorem. 04
(A) For the network of Fig 2.A find ZL for maximum power at the load and determine 08 the maximum power.
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(B) For the network shown in Fig 2.B write the mesh current equations. Find the 08 power output of the voltage source and determine the power in the circuit resistors.
(C) Write note on : i) Driving point impedance ii) Nodal analysis 04
(A) In the network shown in Fig 3.A switch K is changed from position a to b at 08 t=0. Solve for i , di/dt , di2/dt2 at t=0+ .
(B) Establish a relation between: i) Impedance of the Series tuned circuit with 06 quality factor ii) Bandwidth of a series tuned circuit with quality factor.
(C) For the circuit of Fig 3.C find the value of R1 such that the circuit is at 06 resonance.
(A) A series RLC circuit has a resistance of 10Q, a capacitance of 100F and a 08 variable inductance. The applied voltage is 230V, 50Hz. Find i) the value of inductance for which the voltage across the resistance is maximum. Ii) Quality
factor iii) Voltage drops across R, L, and C.
(B) Explain the following terms: i) Selectivity ii) Quality factor iii) Bandwidth 06
(C) The network of Fig 4.C is in steady state with the switch K closed. At t=0 06 switch is opened . Find VK at t=o+ and dVK/dt at t=o+.
(A) Find the laplace transform of the waveforms given in Fig 5.A. 10
(B) Express i) Z parameters in terms of Y parameters ii) ABCD parameters in 10 terms of Y parameters.
(A) For the circuit shown in fig 6.A , Find the drop across RL . 10
(B) i) Find the inverse laplace of the following: a) 5/s(s2+16) b) (s+5)/s(s2+6s+9) 05
ii) Show that a) L{t f(t)}= -(d/ds) F(s) b) L {f(t)/t} = J F(s) ds 05
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| Earning: Approval pending. |
