I B.Tech - Regular Examinations, June 2009
First Year
Netwrok Analysis - SET NO: 4
(Regulation 2007)
Time : 3 hours |
Maximam Marks:80 |
Answer any FIVE Questions
1. A circuit consisting of three resistances 12
, 18
and 36
respectively joined in
parallel is connected in series with a fourth resistance. The whole circuit is applied
with 60V and it is found that the power dissipated in the 12
resistor is 36 W.
Determine the value of the fourth resistance and the total power dissipated in the
circuit.
2. For the trapezoidal waveform shown in the figure 2b, determine.
(a) Average value
(b) R.M.S. Value.
3. Obtain the relationship between currents and the relationship between voltages in
a delta connected system. Hence derive the equation for power in such a system.
4. Obtain the cut - set matrix for the network, as shown in figure 4.
5. Find Va using Super position principle in the circuit shown in the figure 5.
6. For the circuit shown in figure 6, find the h parameters and ABCD parameters.
Check for reciprocity
7. A DC voltage of 100V is applied in the adjoining circuit as shown in the figure 7
and the switch K is open. The switch K is closed at t = 0. Find the complete
expression for the current.
8. Design a composite low pass filter to meet the following specifications. The filter is
to be terminated in 500 ohms resistance and it is to have a cutoff of 1000 Hz with
very high attenuation at 1065 and 1250 Hz.
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