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Definition of "Average Value of an AC" |
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. / Exciting current when used in connection with transformer is the current or amperes required getting the transformer to the point where it will operate. A certain amount of energy is required to overcome the internal resistance of the steel core. |
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