Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 11, Problem 11.22P
To determine
(a)
The value of the resistance per unit length of inner conductor
To determine
(b)
The value of the resistance per unit length of outer conductor
To determine
(c)
The value of resistance per unit length of transmission line
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Students have asked these similar questions
5. A coaxial cable, having an inner diameter of
0.025mm and using an insulator with dielectric
constant of 2.56, is to have a characteristic
impedance of 2000 2. What must be the outer
conductor diameter?
Please. Solve this question correctly,,
b) A high-voltage twin-wire transmission line comprises two cylindrical copper
conductors running parallel to each other in air. The two conductors are solid,
having radius a = 10mm. The spacing between conductor centres D = 100mm
One conductor is grounded, and the other conductor raised to 25kV.
i)
Sketch the electric field and equipotential distribution on a cross-section of
the transmission line, labelling the most important features.
ii) Calculate the capacitance per unit length of this twin wire line in
picofarads per metre.
iii) Show that the free charge accumulated on each conductor is
approximately ±0.3μC/m.
Chapter 11 Solutions
Engineering Electromagnetics
Ch. 11 - Show that Ex8 = Aej(k0z+) is a solution of the...Ch. 11 - Prob. 11.2PCh. 11 - Prob. 11.3PCh. 11 - Small antennas have low efficiencies (as will be...Ch. 11 - Consider two x-polarized waves that...Ch. 11 - A uniform plane wave has electric field E8 =...Ch. 11 - Prob. 11.7PCh. 11 - An electric field in free space is given in...Ch. 11 - An example of a nonuniform plane wave is a surface...Ch. 11 - Prob. 11.10P
Ch. 11 - A uniform plane wave at frequency f= 100 MHz...Ch. 11 - Repeat Problem 11.11, except the wave now...Ch. 11 - Let jk = 0.2 + jl.5 m -1 and y = 450 +J60 for a...Ch. 11 - Describe how the attenuation coefficient of a...Ch. 11 - A 10-GHz radar signal may be represented as a...Ch. 11 - Consider the power dissipation term. E.jdv, in...Ch. 11 - Prob. 11.17PCh. 11 - Given, a 100-MHz uniform plane wave in a medium...Ch. 11 - Prob. 11.19PCh. 11 - Prob. 11.20PCh. 11 - Prob. 11.21PCh. 11 - Prob. 11.22PCh. 11 - Prob. 11.23PCh. 11 - (a) Most microwave ovens operate at 2.45 GHz....Ch. 11 - Let jk = 0.2 + jl.5 m-1 and y\ = 450 +j60 Q for a...Ch. 11 - Prob. 11.26PCh. 11 - Prob. 11.27PCh. 11 - Prob. 11.28PCh. 11 - Consider a left circularly polarized wave in free...Ch. 11 - Prob. 11.30PCh. 11 - Prob. 11.31PCh. 11 - Prob. 11.32PCh. 11 - Given a wave for which Es=10ejxax+18ejxejayV/m. in...Ch. 11 - Given, a general elliptically polarized wave as...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- For the Figure 6 shown: A 441 -km long, 59 Hz, three-phase, 3-wire, transmission line is composed of stranded conductors in each line with GMR of 12.33 -mm. If the distance D in the figure is 3.24 m., What is inductance per line in (mH)? Figure 6 o 1.732D 1.732D Ⓒarrow_forwardii) The 50 lossless coaxial cable is filled with a dielectric material between the inner conductor and the outer conductor. The material has a dielectric constant of & 4. Another lossless coaxial cable has the same size as this cable but is filled with a new material having a dielectric constant of &r= 2. Is the characteristic impedance of the other cable smaller or greater than 50 2? Justify your answer.arrow_forwardA piece of RG-59B/U Coaxial cable has a nominal capacitance of 0.4F/m, and 7.5 H inductance per meter. The diameter of the inner conductor as 0.8m,and the dielectric constant of the insulation as 4.97. Find the diameter of the outer conductor in cm. Assume the line is a lossless line?arrow_forward
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- Corona loss...arrow_forward4.4 One thousand circular mils or 1 kcmil is sometimes designated by the abbreviation MCM. Data for commercial bare-aluminum electrical con- ductors lists a 60 Hz resistance of 0.0080 ohm per kilometer at 75°C for a 793-MCM AAC conductor. (a) Determine the cross-sectional conducting area of this conductor in square meters. (b) Find the 60 Hz resistance of this conductor in ohms per kilometer at 50°C.arrow_forwardQ-1) Polystyrenes has a relative permittivity of 2.7. If the wavw is incident at an angle 'ei' of 30° from air onto polystyrene, the angle of transmission will be nearly..?arrow_forward
- 3. Coaxial cable is used in applications requiring the propagation of high-frequency signal. Such cable consists of a solid conducting cylinder as the inner conductor and a solid conducting cylindrical shell as the outer conductor. A dielectric fills the region between these conductors. Consider the RG-59/U coaxial cable that is commonly used to connect a television/internet equipment. It has an inner conductor with a diameter of 0.584 mm, dielectric filler with a dielectric constant of K = 1.20, and an outer conductor with an inner diameter of 3.7084 mm. Assuming that these conductors are very long, calculate the capacitance per metre of the RG-59/U coaxial cable. Include a derivation of an equation for the capacitance per unit length of the coaxial cable and then use this equation to calculate your answer. (As discussed in class, assign a charge +Q and voltage V to the inner conductor and a charge -Q and 0 V to the outer conductor, solve for the voltage V, and then compute the…arrow_forwardAssume that a single-conductor belted cable has a conductor diameterof 0.681 in., inside diameter of sheath of 1.7025 in., and a length of8000 ft. The cable is to be operated at 12.47 kV. The dielectricconstant is 4.5, and the power factor of the dielectric at a ratedfrequency and temperature is 0.05. Calculate the following:(a) Capacitance of cable.(b) Charging current.(c) Dielectric loss of cable.(d) Equivalent resistance of insulation.arrow_forwardThe towers of height 45 m and 85 m respectively support a transmission line conductor at water crossing. The horizontal distance between the towers is 550m. If the tension in the conductor is 1550 kg, Weight of conductor is 1.65 ky/m. Bases of the towers can be considered to be at water level. Estimate: i) distance between lowest point on conductor and each tower ii) sag at each tower iii) the minimum clearance between ground and conductorarrow_forward
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How do Electric Transmission Lines Work?; Author: Practical Engineering;https://www.youtube.com/watch?v=qjY31x0m3d8;License: Standard Youtube License