What is the live wire?
The live wire carries to the appliance at a high voltage.
physics
What is the frequency?
Hertz
What is the unit of loudness?
Decibel(dB)
What is loudness?
It is the way that the human ear perceives sound.
What is a decibel scale?
The decibel is the unit used to measure the loudness of sound.
Define bass.
Low pitch sounds are called bass.