the gain in decibels of a power gain of 10,000,000 is ______. select one: a. 140 db b. 80 db c. 70 db
the gain in decibels of a power gain of 10,000,000 is ______. select one: a. 140 db b. 80 db c. 70 db
Answer
Answer:
c. 70 dB
Explanation:
Step1: Recall power gain dB formula
Power gain in dB = $10 \log_{10}(P_{\text{gain}})$
Step2: Substitute $P_{\text{gain}} = 10^7$
$10 \log_{10}(10^7) = 10 \times 7 = 70$ dB