Usually measured in watts.
Conventional ovens by far have the best energy usuage rating.
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MM Blues
There are different units for electricity, depending on what you want to measure; for example: volts to measure voltage amperes to measure current watts to measure power etc.
The unit of measure for amount of electricity is voltage.
Pressure
what general-purpose tool can measure characteristics of electricity in a variety of devices
by using watts
ammeters measure the flow of electricity voltmeters measure the pressure of electricity
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If he was " Sir Smith" she would be "Lady Smith". Common usuage was "my Lady"
== == Volts are a measure of electrical "pressure" differential.