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

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

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

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