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Decibel is a factor or a ratio and no unit.
If you have 1 volt and you damp it to 1/4 volt then you will get a damping of 12 dB.
Voltage daming = 20×log (1/4) = (-)12 dB.
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∙ 12y ago
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What is the symbol for decibels?
The usual symbol for decibels is dB.
What is a machine that measures decibels?
An SPLOIUYTR machine measures decibels.
What unit are sound waves measured in?
•Sound can be measured in many ways such as decibels. There is a special machine which you can by that measures how many decibels something makes. A pin makes 10 decibels where as a loud persons or a stereo can make up to 80 decibels. Volume is measured in decibels. So Frequency is measured in hertz
How many decibels?
in what
Fractions to decibels?
no
Why is the abbreviation for decibels dB?
DeciBels
How many decibel's is a dogs bark?
That depends really how close your ears are to the dog. The closer you are, the more decibels you will get.
Does voltage current or power affect volume in a speaker?
Power (Watts)/ Decibels (if the speaker is efficient) 2 Watts = 93 decibels 4 Watts = 96 decibels 8 Watts = 99 decibels 16 Watts = 102 decibels 32 Watts = 105 decibels 64 Watts = 108 decibels 128 Watts = 111 decibels 256 Watts = 114 decibels 512 Watts= 117 decibels 1024 Watts = 120 decibels Some Volumes to Compare 10 decibels = normal human breathing 60 decibels = normal human conversation 110 decibels = power saw, car horn, shouting in ear, 120 decibels = jet aircraft close by, emergency vehicle siren, rock concert
What do decibels change in?
do decibels change to wavelength
How many decibels is a whisper?
20 decibels
How many decibels is a pigs squeal?
207 decibels.
Decibels are a measuremeant of what?
Decibels are a measurement of the loudness of sound.
What is the symbol for decibels?
The usual symbol for decibels is dB.
How many decibels is a 12 gauge shotgun at the muzzle?
It depends on the load and other factors but a good measure is: 12 Gauge 28" barrel=151.50dB
How many decibels does a cough produce?
70-100 decibels
Which is sound measured by watts meters amps or decibels?
Decibels
What is the abbreviation used for decibels?
The abbrevation used for decibels is dB.
