Electronics & Circuits
Intermediate

Decibel (Voltage)

Voltage ratio in decibels.

Formula

dB=20log⁡10V2V1dB = 20\log_{10}\frac{V_2}{V_1}

Variables

V_1,V_2Voltages

Did You Know?

For voltage, a 6 dB rise means doubling, reflecting power's dependence on voltage squared.

decibelgaindb