Question

At audio frequencies (below 20kHz), electromagnetic waves have very ____ wavelengths. The wavelength is typically much larger than the length of any of the wires in the circuit used. An exception would be long ____ or ____ lines. (hint: POTS and 60Hz). When wavelength is much shorter than the wire lengths, the basic rules of electronic circuits apply and ____ theory is not necessary.

Answer 1

Answer:

broad, transmission or power lines, electrical circuit theory

Explanation:

Electromagnetic waves have quite broad wavelengths for audio frequencies. Normally, the wavelength is larger than any of wires used in circuit. Long transmission or power line might be an exception. If the wavelength is much smaller than length of a wire, the basic principles of electronic circuits apply and the principle of electrical circuits is not needed

For wavelength much smaller than length of wire given, the given elements behave as distributed element, so for this condition Maxwell equation is apply