4. (a) A resistor network is shown in Figure 4(a). By applying the Kirchhoff'scurrent law, determine the value of the currents I, Iz and I4.l4Is =50AI7=100AI2 =30Aww16 =20AFigure 4(a)(b) As shown in Figure 4(b), a series RLC circuit is connected to a 50 V 50 HzAC supply. The circuit consists of a 20 resistor, a 25 mH inductor, and a200 µF capacitor.(i) Determine the total impedance (Z) in rectangular form.(ii) Calculate the supply current (I) in polar form; and(iii) Calculate the voltages across the resistor (VR), inductor (VL), and capacitor(Vc) in polar form.(iv) Sketch a phasor diagram to show the supply current (1), supply voltage (V),and voltages across the resistor (VR), inductor (VL), and capacitor (Vc).50 V, 50 HzRLCFigure 4(b)(c) A student is doing a test for the LRC circuit similar with connection shownin Figure 4(b). He takes a resistor with a low resistance value. Then, herandomly picks an inductor and capacitor. At last, he connects a 220 V a.c.to all of them in series. However, it is found that the protection fuse of thecircuit is blown. Identify the possible problem with explanation.

Answered: Image /qna-images/answer/0dc59900-a2d2-4bd7-ac44-f0e017534f7e.jpg

Answered: 4. (a) A resistor network is shown in…

4. (a) A resistor network is shown in Figure 4(a). By applying the Kirchhoff's current law, determine the value of the currents I1, I3 and I4. l4 Is =50A 1=100A 12 =30A I6 =20A Figure 4(a)

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.17MCQ: Consider the load convention that is used for the RLC elements shown in Figure 2.2 of the text. A....

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Question

4. (a) A resistor network is shown in Figure 4(a). By applying the Kirchhoff's
current law, determine the value of the currents I, Iz and I4.
l4
Is =50A
I7=100A
I2 =30A
ww
16 =20A
Figure 4(a)
(b) As shown in Figure 4(b), a series RLC circuit is connected to a 50 V 50 Hz
AC supply. The circuit consists of a 20 resistor, a 25 mH inductor, and a
200 µF capacitor.
(i) Determine the total impedance (Z) in rectangular form.
(ii) Calculate the supply current (I) in polar form; and
(iii) Calculate the voltages across the resistor (VR), inductor (VL), and capacitor
(Vc) in polar form.
(iv) Sketch a phasor diagram to show the supply current (1), supply voltage (V),
and voltages across the resistor (VR), inductor (VL), and capacitor (Vc).
50 V, 50 Hz
R
L
C
Figure 4(b)
(c) A student is doing a test for the LRC circuit similar with connection shown
in Figure 4(b). He takes a resistor with a low resistance value. Then, he
randomly picks an inductor and capacitor. At last, he connects a 220 V a.c.
to all of them in series. However, it is found that the protection fuse of the
circuit is blown. Identify the possible problem with explanation.

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