Problem 9.19 (a) Suppose you imbedded some free charge in a piece of glass. About how long would it take for the charge to flow to the surface? (b) Silver is an excellent conductor, but it's expensive. Suppose you were designing a microwave experiment to operate at a frequency of 1010 Hz. How thick would you make the silver coatings? (c) Find the wavelength and propagation speed in copper for radio waves at 1 MHz. Compare the corresponding values in air (or vacuum).

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
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
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Problem 9.19
(a) Suppose you imbedded some free charge in a piece of glass. About how long
would it take for the charge to flow to the surface?
(b) Silver is an excellent conductor, but it's expensive. Suppose you were designing
a microwave experiment to operate at a frequency of 1010 Hz. How thick would
you make the silver coatings?
(c) Find the wavelength and propagation speed in copper for radio waves at 1 MHz.
Compare the corresponding values in air (or vacuum).
Transcribed Image Text:Problem 9.19 (a) Suppose you imbedded some free charge in a piece of glass. About how long would it take for the charge to flow to the surface? (b) Silver is an excellent conductor, but it's expensive. Suppose you were designing a microwave experiment to operate at a frequency of 1010 Hz. How thick would you make the silver coatings? (c) Find the wavelength and propagation speed in copper for radio waves at 1 MHz. Compare the corresponding values in air (or vacuum).
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