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Definition of "Abbreviated Dialing" |
Abbreviated dialing is the use of a very short telephone number to reach public services. Typically these are two or three digits, and are most commonly known as being emergency telephone numbers like 9-9-9, 1-1-2 and 9-1-1. / The average value of an AC or voltage is the average of all the values during one alternation. Since the voltage increases from zero to peak value and decreases back to zero during one alternation, the average value must be some value between those two limits. You could determine the average value by adding together a series of instantaneous values of the alternation between 0° and 180°, and then dividing the sum by the number of instantaneous values used. |
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