mains hum
noun1
A sound associated with alternating current which has a frequency a multiple of that of the mains electricity.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
A sound associated with alternating current which has a frequency a multiple of that of the mains electricity.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
Do you accept non-essential analytics cookies?