R09  December, 2011  Regular Examinations  Set  2.
B.Tech II Year  I Semester Examinations, December 2011
ELECTRICAL CIRCUITS
(COMMON TO EEE, ECE, ETM)
Time: 3 hours Max. Marks: 75
Answer any five questions
All questions carry equal marks

1.a) Calculate the power absorbed by each component in the circuit shown in below Figure.1.
Figure.1
b) Consider the resistance shown below Figure (a). A voltage v(t) of waveform given in Figure (b) is applied at its terminals. Obtain the waveform of current through it. [7 8]
2. Perform both node and mesh analysis for the circuit shown in below Figure.2 to determine all the branch voltages and currents. [15]
Figure.2
3.a) Find the input impedance of the circuit shown in below Figure.3. Assume that the circuit
operates at ? = 50 rad/s.
Figure.3
b) Find I in the circuit shown in below Figure.4. [5 10]
Figure.4
4. A seriesconnected RLC circuit has R = 4 and L = 25 mH.
a) Calculate the value of C that will produce a quality factor of 50.
b) Find ?1, ?2, and B.
c) Determine the average power dissipated at ? = ?0, ?1, ?2. Take Vm = 100 V. [15]
5. Find current Io in the circuit shown in below Figure.5. [15]
Figure.5
6. Draw a suitable tree and dual network. Use general loop analysis to find i0 in the circuit shown in below Figure.6. [15]
Figure.6
7. With suitable example explain Tellegen’s theorem for DC networks. For the circuit shown in below Figure.7, find the Norton’s equivalent circuit between terminals a and b.
[15]
Figure.7
8. With suitable example explain Reciprocity theorem for AC circuits. Find the Thevenin’s equivalent circuit of the circuit shown in below Figure.8 as seen from
a) terminals ab b) terminals cd [15]
Figure.8
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ELECTRICAL CIRCUITS
(COMMON TO EEE, ECE, ETM)
Time: 3 hours Max. Marks: 75
Answer any five questions
All questions carry equal marks

1.a) Calculate the power absorbed by each component in the circuit shown in below Figure.1.
Figure.1
b) Consider the resistance shown below Figure (a). A voltage v(t) of waveform given in Figure (b) is applied at its terminals. Obtain the waveform of current through it. [7 8]
2. Perform both node and mesh analysis for the circuit shown in below Figure.2 to determine all the branch voltages and currents. [15]
Figure.2
3.a) Find the input impedance of the circuit shown in below Figure.3. Assume that the circuit
operates at ? = 50 rad/s.
Figure.3
b) Find I in the circuit shown in below Figure.4. [5 10]
Figure.4
4. A seriesconnected RLC circuit has R = 4 and L = 25 mH.
a) Calculate the value of C that will produce a quality factor of 50.
b) Find ?1, ?2, and B.
c) Determine the average power dissipated at ? = ?0, ?1, ?2. Take Vm = 100 V. [15]
5. Find current Io in the circuit shown in below Figure.5. [15]
Figure.5
6. Draw a suitable tree and dual network. Use general loop analysis to find i0 in the circuit shown in below Figure.6. [15]
Figure.6
7. With suitable example explain Tellegen’s theorem for DC networks. For the circuit shown in below Figure.7, find the Norton’s equivalent circuit between terminals a and b.
[15]
Figure.7
8. With suitable example explain Reciprocity theorem for AC circuits. Find the Thevenin’s equivalent circuit of the circuit shown in below Figure.8 as seen from
a) terminals ab b) terminals cd [15]
Figure.8
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CreatedSep 29, 2012

UpdatedSep 29, 2012

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