Current measurement accuracy: the court of Ohms law

Tests such as device efficiency and battery drain analysis measure voltage and current to compute power and other electrical parameters. The accuracy of these tests is directly dependent on the accuracy of the constituent measurements, often targeting a total error of 0.1% or better. At a glance, current measurement might seem like a straightforward application of Ohms law, but measuring large or highly dynamic currents can be deceptively challenging due to range and accuracy limitations in real-world equipment.
Issue:  KIPiS 2013 #5
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