(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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