answersLogoWhite

0

Decibel is no real unit, it is a pseudo unit.

The decibel (dB) is a logarithmic unit that indicates the ratio of a physical quantity.

A change in voltage ratio by a factor of two is approximately a 6 dB change.

A change in power ratio by a factor of two is approximately a 3dB change.

User Avatar

Wiki User

13y ago

What else can I help you with?