Question

Decibel scale is useful while measuring voltages covering
1. Wide frequency ratio
2. Wide voltage ratio
3. Narrow frequency range
4. Narrow voltage range

Answer 1

Correct Answer - Option 1 : Wide frequency ratio

Decibel Scale:

• A decibel scale is used for measuring voltage covering the wide frequency ratio.
• The decibel (dB) is used to measure sound level.
• It is also widely used in electronics, signals, and communication.
• The dB is a logarithmic way of describing a ratio.
• The ratio may be power, sound pressure, voltage or intensity, or several other things.