In this post we will explain Answers of below two Questions. 1 dB corresponds to change in voltage or current level percentage and change in power level percentage.
1 dB corresponds to _______ change in voltage or current level
a. 40%
b. 80%
c. 12%
d. 25%
Ans: 12%
1 db corresponds to_________ change in power level
a. 50%
b. 35%
c. 26%
d. 22%
Ans: 26%
Explanation:
Voltage or current to dB formula and power to dB formula is given below
dB = 20 log10 (V2/V1)
dB = 20 log10 (Pout/Pin)
In below image we provide change in voltage vs dB explanation
In below image we provide change in Power vs dB explanation
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