Semester : SEMESTER 3
Subject : Network Theory
Year : 2020
Term : SEPTEMBER
Scheme : 2015 Full Time
Course Code : EC 201
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00000EC201121906
function and ൪) Find response of a system for input x(t) = 4 e-*
A series RLC circuit with R= 10002, L= 0.1 H and C= 40 uF has a de voltage of
200 V applied at t= 0. Find the transient current.
Derive the response of a series RC circuit for a step input
What are the restrictions on poles and zeros for the transfer function and driving
point functions
A 100uF capacitor has an initial charge Qo = 0.002 C is connected in series with
20002 across 50۷ supply at time t=0. Find the transient current.
Define poles and zeros of a transfer function. For the given transfer function find
the poles and zeros and also draw the pole zero plot
1 (s) = 20 (൭-5) / (s* + 5s+ 6)
PART C
Answer any two full questions, each carries 20 mark.
Two inductively coupled coils have self-inductance رآ = 50mH, 1.2 = 200mH.
Given k = 0.5. Find the mutual inductance between the coil
Two coupled coils have a coefficient of coupling k= 0.83. With coill open, a
current of SA flows in coil 2. Given flux in coil2 is 0.35 milli weber. Find 1.1. 12
and M.
A coil having an inductance and resistance of 50 mH and 100Q is connected in
series with a capacitor and a 100V, 1 kHz source. Find the value of capacitance
that will cause resonance in the circuit. Find the resulting current at resonance
Define characteristic impedance and image impedance
Explain Y parameters.
Derive the inter relation between open circuit impedance parameters and
transmission parameters
In a RLC series circuit, the resistance, inductance and capacitance are 10Q,
100 mH and 10 uF. Find രം, ೧1 and .ده Also find band width and selectivity
Explain parallel inter connection of two port networks
The h parameters of a two port network are hy; = 1.5 kQ, 112 = 2 x 103 + 121 =
250 and 122 = 150 x 10" . Find Z parameters and draw its equivalent
Explain Double tuned coupled coils
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