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DC Network Theory Exercises

This document discusses DC network theory and includes 14 questions about circuit analysis techniques. It covers topics like ideal voltage sources, current sources, power calculations, mesh current analysis, nodal analysis, Y-Δ transformations, and the superposition theorem. Several circuit diagrams are provided as figures to accompany analysis questions. The document provides instruction and practice on foundational electrical circuit concepts.

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61 views1 page

DC Network Theory Exercises

This document discusses DC network theory and includes 14 questions about circuit analysis techniques. It covers topics like ideal voltage sources, current sources, power calculations, mesh current analysis, nodal analysis, Y-Δ transformations, and the superposition theorem. Several circuit diagrams are provided as figures to accompany analysis questions. The document provides instruction and practice on foundational electrical circuit concepts.

Uploaded by

m_mustaqeem
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Unit-I DC Network Theory

1. The voltage of an ideal voltage source is …………… (dependent/ not dependent) on either magnitude
or direction of the current flowing through the source.
2. In the circuit of Fig.1, find the value of current and terminal voltage of current source. Also determine
power that is dissipated in 2Ω resistor.
3. In the circuit of Fig.2, Measurement of voltage across the terminals of the current source yields a value
of 22V. Find the value of R3 in ohms.
4. For the ckt shown in Fig.3, the value of R such that the same amount of power is supplied to 10 ohm
resistance by the current and by the voltage source will be --------------

Fig.1 Fig.2 Fig.3


5. For the circuit shown in Fig.4, find the voltage drop across R1 & R2. R3 is not specified.
6. For the circuit shown in Fig.5, find the current delivered by the battery. Also find the resistance of R2 in
ohms.
7. A voltage source of 200 V has internal impedance 5 ohm supplies a load having that same impedance.
The power absorbed by the load is ---------------------------
8. Out of Mesh and Nodal analysis, which method will require least number of equations to solve the
network of figure 6? Write equation in matrix form following the method requiring least effort.

Fig.4 Fig.5 Fig.6


9. An electric heater draws 1000W from a 250-V source. What power does it take from 208-V source?
What is the value of resistance of the heater?
10. Using mesh current method, determine current Ix in the circuit of Fig. 7.
11. Calculate current in all resistances of the circuit shown in Fig.8 using node analysis method.
12. Discuss the characteristics of the Capacitor and Inductor.
13. Find resistance between AB of the circuit shown in Fig.9 use Y-Δ transformation.
14. State superposition theorem and find the current in all the resisters of the n/w shown in Fig.10.

Fig.7 Fig.8 Fig.9 Fig.10

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