I B.Tech - Regular Examinations, June 2009
First Year
Netwrok Analysis - SET NO: 1
(Regulation 2007)
Time : 3 hours |
Maximam Marks:80 |
Answer any FIVE Questions
1. Using star delta conversion find the current I in the circuit as shown in figure 1.
2. The resistor R in series with capacitance C is connected to a 50Hz, 240 V supply.
Find the value of C so that R absorbs 300 watts at 100 volts. Find also the
maximum charge and the maximum stored energy in C.
3. Derive the expression for resonant frequency of a parallel circuit having R1 and L
in one branch and R2 and C in the second branch.
4. Find the power delivered by the batteries in the figure 4 using mesh analysis.
5. Find the value of RL so that maximum power is delivered to the load resistance
RL, as shown in figure 5. Also calculate maximum power.
6. For the two port network shown in the figure 6, the currents I1 and I2 entering at
port 1 and 2 respectively are given by the equations.
I1 = 0.5 V1 - 0.2 V2
I2 = -0.2V1 + V2
Where V1 and V2 are the port voltages at port 1 and 2 respectively. Find the Y,
Z, ABCD parameters for the network. Also find its equivalent ΙΙ network.
7. Derive the transient response of RLC series circuit with unit step input.
8. Design a T-type and p-type attenuator if the characteristic resistance is 200Ω
and
the attenuation is 200dB.
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