Referring to the network in Figure 4.2, use nodal analysis to find the voltages Va and Vb. V₂ 1₁ 1052 15 V 1052 www 0.5 A 14 V₂ >602 Figure 4.2 1₂ Is 60 52 Ω (c) For the circuit shown in Figure 4.3, determine (1) the current Is and the voltage V₁ before the VOM multimeter is connected, (ii) the voltage V₁ after the VOM multimeter is connected. V₁ Is -40 V w 1500 £2 ww 500 £2 ww R = 50 ΚΩ ‒‒‒‒‒‒ VOM Multimeter Figure 4.3 120 V

Referring to the network in Figure 4.2, use nodal analysis to find the voltages Va and Vb. V₂ 1₁ 1052 15 V 1052 www 0.5 A 14 V₂ >602 Figure 4.2 1₂ Is 60 52 Ω (c) For the circuit shown in Figure 4.3, determine (1) the current Is and the voltage V₁ before the VOM multimeter is connected, (ii) the voltage V₁ after the VOM multimeter is connected. V₁ Is -40 V w 1500 £2 ww 500 £2 ww R = 50 ΚΩ ‒‒‒‒‒‒ VOM Multimeter Figure 4.3 120 V

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.61P

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Concept explainers

KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.

Question

need help on Q1_Q2

(b)
Referring to the network in Figure 4.2, use nodal analysis to find the voltages
Va and Vb.
V₂
1₁
1052
15 V
10 2
www
0.5 A
14
Figure 4.2
V₂
36052
Ω
1₂
1₂
| 60 Ω
2
(c)
For the circuit shown in Figure 4.3, determine
(1)
the current Is and the voltage V₁ before the VOM multimeter is
connected,
(ii)
the voltage V₁ after the VOM multimeter is connected.
V₁
-40 V
Is
1500 Ω
500 £2
ww
R =
R = 50 ΚΩ
-----
VOM Multimeter
Figure 4.3
120 V

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