Electromagnetic fields exist at frequencies from 0 Hz to at least \(10^{20}\) Hz – that’s at least 20 orders of magnitude! This section describes some of the characteristics of the electromagnetic spe...Electromagnetic fields exist at frequencies from 0 Hz to at least \(10^{20}\) Hz – that’s at least 20 orders of magnitude! This section describes some of the characteristics of the electromagnetic spectrum, including some of the conventional names given to electromagnetic waves over certain ranges of frequency.