Solved: High-frequency signals are often transmitted along
Chapter 30, Problem 30.130(choose chapter or problem)
High-frequency signals are often transmitted along a coaxial cable, such as the one shown in FIGURE CP30.86. For example, the cable TV hookup coming into your home is a coaxial cable. The signal is carried on a wire of radius r1 while the outer conductor of radius r2 is grounded. A soft, flexible insulating material fills the space between them, and an insulating plastic coating goes around the outside. a. Find an expression for the inductance per meter of a coaxial cable. To do so, consider the flux through a rectangle of length l that spans the gap between the inner and outer conductors. b. Evaluate the inductance per meter of a cable having r1 = 0.50 mm and r2 = 3.0 mm.
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