bel

- A dimensionless
__unit__which expresses the ratio of two powers or intensities, such as voltages, currents, or sound intensities. The number of bels represents the logarithm of the ratio of the quantities measured. A bel is__equal__to approximately 1.1513 nepers. The decibel, which is 0.1 bels, is a much more frequently encountered unit, as the bel is too large for most applications. Its symbol is b, or B. - symbol B

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