What does a loss of 10 decibels mean with respect to the percent of power loss in mW?
A) 50%
B) 10%
C) 30%
D) 90%

Question

Quizplus · Accepted Answer

A loss of 10 decibels (dB) corresponds to a power loss of 90% in mW. This can be calculated using the formula: 
Power loss in mW = 10^(-dB/10) 
For a loss of 10 dB: 
Power loss in mW = 10^(-10/10) = 0.1 
Therefore, there is a 90% power loss (or 0.1 times the original power) in mW.

What Does a Loss of 10 Decibels Mean with Respect