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dB (decibel) is a logarithmic measure of the ratio of two power values, for example, two signal strengths. This is often used for power gain or power loss. For example, a loss of 10 dB means that the signal degrades by a factor of 10, a loss of 20 dB means that the signal degrades by a factor of 100, and a loss of 30 dB means that the signal degrades by a factor of 1000.
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ABCD is a rectangle and AE equals 12 what is the length of DB?
24;
AC equals 14 cm DB equals 8 cm What is the area of this rhombus?
56 cm squared
How do you get power output with a given power input of 20dbm and three power gain which is Ap1 equals 10 ap2 equals 4 ap3 equals 23?
Two ways to do it. In this particular problem, it's a matter of opinionwhich one is easier and which one is harder.Way #1:Convert dBm to watts, multiply by gains, convert output watts to dBm.+20 dBm = 0.1 watt.Output power = (0.1 watt) x (ap1) x (ap2) x (ap3) = 0.1 x 10 x 4 x 23 = 92 watts = +49.64 dBmWay #2:Convert each gain ratio to dB, then add all dB to input power.ap1 = 10 = 10 dBap2 = 4 = 6.02 dBap3 = 23 = 13.62 dB+20 dBm + 10dB + 6.02 dB + 13.62 dB = +49.64 dBm
Is a sound that measures 100-dB ten times louder than a 10-dB?
90
What is 45 percent in decibels?
100 percent is 0 dB.50 percent is - 6 dB.45 percent is -6.935749724 dB.10 percent is - 20 dB.
If ED equals 10 and DB equals 3x - 8 what is the length of EB?
The answer is 22.
What is the area of this rhombus if AC equals 14 cm DB equals 8 cm?
112
If ABCD is a rectangle and AE equals 15 what is the length of DB?
30
ABCD is a rectangle and AE equals 12 what is the length of DB?
24;
AC equals 14 cm DB equals 8 cm What is the area of this rhombus?
56 cm squared
How 3db dandwidth equals half power bandwidth?
"3 dB" is a nickname for "1/2 power". "1/2 power" in dB = 10 log(1/2) = 10 (-0.30103) = -3.01 dB
How many watts is 98db?
It depends on the reference. If the reference electric power is P0 = 1 W (0 dB) then 98 dB equals 6309573444.8 Watts.
What is the difference between dB SPL and dB SL?
There are several types of dB. dB SPL are decibels measuring sound pressure levels. There is an accepted reference point of 0 dB SPL which equals 20 micropascals = 2 × 10-5 pascals. dB SL are decibels measuring a signal relative to an individuals auditory threshold. For example, if a person's minimum threshold is 30 dB HL (yet another type of decibel measuring how much worse a person's hearing is based on a referential dB level) and a signal is at 40 dB HL, the sensation level of this signal to this individual is 10 db SL (40 dB - 30 dB = 10 dB SL).
What does NRR equals 30 db mean?
NRR means Noise Reduction Ratio and 30 db (decibels) is about average. 30db hearing protection would be commonly used by shooters to reduce the sound of gun fire.
What are the notes for someone like you by Adele for the keyboard?
A Db E Db A Db E Db A Db E Db A Db E Db Ab Db E Db Ab Db E Db Ab Db E Db Ab Db E Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db Gb Db Gb(higher) Db fqggbegjg2y7gdsjnjnagydsaytdgtewydtwfe
What does sensation level mean?
The sensation level is measured in decibels. It is frequency specific and starts at 0 dB SL (sensation level) where 0 dB SL is the softest the patient can here a specific frequency. This means that the SL will be different for different people. Everyone's SL will start at 0 but my SL at 1000 Hz may be at 23 db IL and another's may be at 54 db IL.Put more simply, dB SL is the difference between a person's threshold of hearing and the presentation level of a stimulus. If a person's speech reception threshold (SRT) is 10 dB on an audiometer (dB HL) and you present a speech stimulus to them at 50 dB HL on the audiometer, their sensation level would be derived thus: 50 dB (presentation level) minus 10 dB (threshold), which equals a sensation level of 40 dB SL. This is also the procedure for a frequency-specific stimulus (e.g. pure tones): subtract the audiometric threshold (dB HL) from the supra-threshold presentation level (dB HL) and the difference is the sensation level (dB SL).
What L is measured in decibels?
L stands for level. All levels are measured in decibels or dB. You need a reference, e.g. the threshold of hearing: p0 = 20 µPa = 2 x 10-5 pascals that equals 0 dB.
