In earlier times when many households received nondigital television signals from an antenna, the lead-in wires from the antenna were often constructed in the form of two paral- lel wires (Fig. P31.50). The two wires carry currents of equal magnitude in opposite directions. The center-to-center separation of the wires is w, and a is their radius. Assume w is large enough compared with a that the wires carry the current uniformly distributed over their surfaces and negli- gible magnetic field exists inside the wires. (a) Why does this configuration of conductors have an inductance? (b) What TV antenna TV set Figure P31.50 constitutes the flux loop for this configuration? (c) Show that the inductance of a length x of this type of lead-in is w - a L In a
In earlier times when many households received nondigital television signals from an antenna, the lead-in wires from the antenna were often constructed in the form of two paral- lel wires (Fig. P31.50). The two wires carry currents of equal magnitude in opposite directions. The center-to-center separation of the wires is w, and a is their radius. Assume w is large enough compared with a that the wires carry the current uniformly distributed over their surfaces and negli- gible magnetic field exists inside the wires. (a) Why does this configuration of conductors have an inductance? (b) What TV antenna TV set Figure P31.50 constitutes the flux loop for this configuration? (c) Show that the inductance of a length x of this type of lead-in is w - a L In a
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter23: Faraday’s Law And Inductance
Section: Chapter Questions
Problem 32P
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