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Electric Meter?

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Electroenthusiast

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What Does Electric Meter present in household measure? I've heard that it measures 'KWh'. But what exactly runs the Meter? Current/Voltage ??
 
Both. It uses the ratio of amps to volts to measure watthours.
 
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The meter motor has both a voltage coil and a current coil, thus the speed of the meter wheel is determined by the volts times amps (on an instantaneous basis so the speed of the wheel is an indication of the true power). This is integrated by the dials to indicate the power over time, giving energy in kWh.
 
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