There’s hardly any piece of test equipment more fundamental than a volt ohm meter. Today you’re likely to have a digital one, but for most of history, these devices had real needle meters.

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This value is equal to the voltage drop across the element divided by the current through the element. As their name suggests, Milliohm meters measure resistance in milliohms, a unit of measure that ...

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The symbol for resistance is R, it is measured in ohms \((\Omega )\). The symbol for current is I, it is measured in amperes \((A)\).

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