A material with &r = 2.25 is used as the insulating material in a lossless coaxial line with characteristic impedance of 50 N. The radius of the inner conductor is 1.2 mm. Problem [11] What is the radius of the outer conductor in mm? Problem [12 What is the phase velocity of the line?
Short Transmission Line
A short transmission line is a transmission line that has a length less than 80 kilometers, an operating voltage level of less than 20 kV, and zero capacitance effect.
Power Flow Analysis
Power flow analysis is a topic in power engineering. It is the flow of electric power in a system. The power flow analysis is preliminary used for the various components of Alternating Current (AC) power, such as the voltage, current, real power, reactive power, and voltage angles under given load conditions and is often known as a load flow study or load flow analysis.
Complex Form
A power system is defined as the connection or network of the various components that convert the non-electrical energy into the electric form and supply the electric form of energy from the source to the load. The power system is an important parameter in power engineering and the electrical engineering profession. The powers in the power system are primarily categorized into two types- active power and reactive power.
![For problems 11 and 12
A material with ɛr = 2.25 is used as the insulating material in a lossless coaxial line with characteristic impedance of 50 Q.
The radius of the inner conductor is 1.2 mm.
Problem [11]
What is the radius of the outer conductor in mm?
Problem [12
What is the phase velocity of the line?
Problem [13]
A copper wire with circular cross-section and Imm radius is 120 meters long. Find the AC resistance of this wire at 100
MHz. Copper has a conductivity of o = 5.8×10’.
Problem [14]
Poynting vector of an electromagnetic wave is given as S=20ŷ+502. Calculate the total power passing
through a surface that is parallel to x-y plane and given as x=0→ 2, y = 0 →3,z =0
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