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half of the total height of a wave such as a sound wave or an electrical wave, used as a measurement of how strong it is. The amplitude of a sea wave is its height above the level of water when the water is calm and still.
a unit for measuring electrical charge
a unit for measuring electrical power, containing 1000 watts. The written abbreviation is kW.
a unit for measuring electrical power, containing one million watts
a unit used for measuring electrical resistance
a unit for measuring electrical power, measured in joules per second
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