Although most commonly used today as a measure of sound intensity in air, the decibel was actually invented to measure the loss of sound intensity in electrical wire. In its regular form, the decibel is abbreviated "dB". When used to measure ratios of other forms of energy intensity the ...
What is a Decibel? The decibel is the common measure of sound intensity and radio signal strength. Although it has never been ratified by any governing standards body, its suitability to measuring ratios and losses has led to widespread adoption of the decibel in indus...[more] ...
It would be difficult to account for the large range of sound levels in human hearing using a linear scale, so the decibel is a logarithmic unit. Some people describe one decibel as the "just noticeable difference" of intensity between two sounds, but this only holds for quieter sounds. The...
Electric current is one of the most basic concepts that exists within electrical and electronic science - electric current is at the core of the science of electricity.Whether it is an electrical heater, a large electrical grid system, a mobile phone, computer, remote sensor node or whatever, ...
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Acoustics are a very complex science, and architects often only give it due importance when it is not well resolved. The most commonly used unit of measure for sound is the decibel. Unlike units like meters or kilos, of which most people vaguely know the comparative length or weight, ...
Decibels are a way of stating the amount of gain or loss of power or voltage that occurs in a circuit. The number of decibels is based on the ratio between the output power and the input power. The number of decibels quoted depends on how the measurements were taken. Decibel is a ...
Decibel Measurements: Logarithmic scales hold a central position in the realm of sound. Decibel measurements, frequently utilized in acoustics, audio engineering, and telecommunications, express sound intensity and power ratios in a logarithmic fashion. This approach enables us to navigate the extensive ...
There are three basic measurements which can be made in an electrical circuit. Voltage and current are the first two, and the third is resistance. As electrical resistance is such a basic concept in electrical and electronic circuits it is necessary to answer some questions: what is resistance,...
What is the decibel? What is the history of air pollution? What are chemicals typically found in air pollution? What is negative soil pollution? What are the most common air pollutants? What is white noise? What is an example of a natural source of pollution?