Download R07 Set No. 2

Code No: R07A1EC05
R07
Set No. 2
I B.Tech Examinations,December-January, 2011-2012
NETWORK ANALYSIS
Common to BME, E.COMP.E, ETM, E.CONT.E, EIE, ECE
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
?????
1. Find the Z and Y parameters of the circuit shown in figure 4.
[16]
Figure 4
2. Draw the graph of the network shown in the figure 8. Obtain a tree thereof. What
is the number of mesh currents required for the network?
[16]
Figure 8
3. Design a T-section attenuator to give an attenuation of 60 dB and to work in a line
of 500Ω impedance.
[16]
4. State and Explain with proof of Reciprocity Theorem.
[16]
5. Four resistors are in parallel. The current in the first three resistors are 4A, 5A
and 6A respectively. The voltage drop across the fourth resistor is 200V. The total
power dissipated is 5kW. Determine the values of resistances of the branches and
the total resistance.
[16]
6. A series circuit consists of R and L and is supplied by a sinusoidal ac voltage source.
Derive expressions for
(a) impedance,
(b) current,
1
Code No: R07A1EC05
R07
Set No. 2
(c) power factor. Draw the vector diagram.
[16]
7. (a) Explain the phenomenon of resonance. Derive the formula for the resonant
frequency of the series resonant circuit.
(b) Give the quality factor in terms of Bandwidth.
(c) Find the natural frequency of a series RLC circuit in which R = 200 ohms, L
= 0.15 H and C = 5 micro Farads.
[8+4+4]
8. Derive the transient response of RLC series circuit with unit step input.
?????
2
[16]
Code No: R07A1EC05
R07
Set No. 4
I B.Tech Examinations,December-January, 2011-2012
NETWORK ANALYSIS
Common to BME, E.COMP.E, ETM, E.CONT.E, EIE, ECE
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
?????
1. A series circuit consists of R and L and is supplied by a sinusoidal ac voltage source.
Derive expressions for
(a) impedance,
(b) current,
(c) power factor. Draw the vector diagram.
2. Derive the transient response of RLC series circuit with unit step input.
[16]
[16]
3. (a) Explain the phenomenon of resonance. Derive the formula for the resonant
frequency of the series resonant circuit.
(b) Give the quality factor in terms of Bandwidth.
(c) Find the natural frequency of a series RLC circuit in which R = 200 ohms, L
= 0.15 H and C = 5 micro Farads.
[8+4+4]
4. Draw the graph of the network shown in the figure 8. Obtain a tree thereof. What
is the number of mesh currents required for the network?
[16]
Figure 8
5. Four resistors are in parallel. The current in the first three resistors are 4A, 5A
and 6A respectively. The voltage drop across the fourth resistor is 200V. The total
power dissipated is 5kW. Determine the values of resistances of the branches and
the total resistance.
[16]
6. Find the Z and Y parameters of the circuit shown in figure 4.
3
[16]
Code No: R07A1EC05
R07
Set No. 4
Figure 4
7. State and Explain with proof of Reciprocity Theorem.
[16]
8. Design a T-section attenuator to give an attenuation of 60 dB and to work in a line
of 500Ω impedance.
[16]
?????
4
Code No: R07A1EC05
R07
Set No. 1
I B.Tech Examinations,December-January, 2011-2012
NETWORK ANALYSIS
Common to BME, E.COMP.E, ETM, E.CONT.E, EIE, ECE
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
?????
1. Derive the transient response of RLC series circuit with unit step input.
[16]
2. A series circuit consists of R and L and is supplied by a sinusoidal ac voltage source.
Derive expressions for
(a) impedance,
(b) current,
(c) power factor. Draw the vector diagram.
[16]
3. Draw the graph of the network shown in the figure 8. Obtain a tree thereof. What
is the number of mesh currents required for the network?
[16]
Figure 8
4. Four resistors are in parallel. The current in the first three resistors are 4A, 5A
and 6A respectively. The voltage drop across the fourth resistor is 200V. The total
power dissipated is 5kW. Determine the values of resistances of the branches and
the total resistance.
[16]
5. State and Explain with proof of Reciprocity Theorem.
[16]
6. Find the Z and Y parameters of the circuit shown in figure 4.
[16]
Figure 4
5
Code No: R07A1EC05
R07
Set No. 1
7. Design a T-section attenuator to give an attenuation of 60 dB and to work in a line
of 500Ω impedance.
[16]
8. (a) Explain the phenomenon of resonance. Derive the formula for the resonant
frequency of the series resonant circuit.
(b) Give the quality factor in terms of Bandwidth.
(c) Find the natural frequency of a series RLC circuit in which R = 200 ohms, L
= 0.15 H and C = 5 micro Farads.
[8+4+4]
?????
6
Code No: R07A1EC05
R07
Set No. 3
I B.Tech Examinations,December-January, 2011-2012
NETWORK ANALYSIS
Common to BME, E.COMP.E, ETM, E.CONT.E, EIE, ECE
Time: 3 hours
Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
?????
1. A series circuit consists of R and L and is supplied by a sinusoidal ac voltage source.
Derive expressions for
(a) impedance,
(b) current,
(c) power factor. Draw the vector diagram.
2. Derive the transient response of RLC series circuit with unit step input.
[16]
[16]
3. Four resistors are in parallel. The current in the first three resistors are 4A, 5A
and 6A respectively. The voltage drop across the fourth resistor is 200V. The total
power dissipated is 5kW. Determine the values of resistances of the branches and
the total resistance.
[16]
4. Find the Z and Y parameters of the circuit shown in figure 4.
[16]
Figure 4
5. State and Explain with proof of Reciprocity Theorem.
[16]
6. (a) Explain the phenomenon of resonance. Derive the formula for the resonant
frequency of the series resonant circuit.
(b) Give the quality factor in terms of Bandwidth.
(c) Find the natural frequency of a series RLC circuit in which R = 200 ohms, L
= 0.15 H and C = 5 micro Farads.
[8+4+4]
7. Design a T-section attenuator to give an attenuation of 60 dB and to work in a line
of 500Ω impedance.
[16]
7
Code No: R07A1EC05
R07
Set No. 3
8. Draw the graph of the network shown in the figure 8. Obtain a tree thereof. What
is the number of mesh currents required for the network?
[16]
Figure 8
?????
8