Concept explainers
Coaxial cables are widely used with audio-visual technology, electronic instrumentation, and radio broadcasting, because they minimize interference with or from signals traveling on the cable. Coaxial cables consist of a wire inner conductor surrounded by a thin cylindrical
FIGURE 21.39 A coaxial cable (Passage Problems 76-79)
For a coaxial cable in electrostatic equilibrium carrying equal bill opposite charges on its two conductors, there’s a nonzero electric field
- a. only in the space between the wire and shield.
- b. in the space between wire and shield, and outside the shield.
- c. inside the metal conducting wire and shield, as well as between the wires and outside the shield.
- d. only outside the shield.
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