Question

8 dB correspond to a power ratio of ....?

Answer 1

6.31

Step-by-step explanation:

Power ratio (in db) = 10 * log [P(out)/P(in)]

Here, P(in) and P(out) correspond to input and output power in Watts respectively.

This implies, 8 db = 10 * log [P(out)/P(in)]

Rearranging, log [P(out)/P(in)] = (8/10)

Or, P(out)/P(in) = 10 ^ 0.8 = 6.31

But, P(out)/P(in) corresponds to the power ratio of output and input power.

So the required power ratio corresponds to 6.31