Decibels

Question 1

What is the approximate amount of change, measured in decibels (dB), of a power increase from 5 watts to 10 watts? (T5B09)

Answer 1

3 dB (3 dB= 2 to 1)

Question 2

What is the approximate amount of change, measured in decibels (dB), of a power decrease from 12 watts to 3 watts? (T5B10)

Answer 2

-6 dB (6 dB= 4 to 1)

Question 3

What is the amount of change, measured in decibels (dB), of a power increase from 20 watts to 200 watts? (T5B11)

Answer 3

10 db (10 dB= 10 to 1