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Current meter

Current meter
Measuring the current drawn by an apparatus is always a rather complicated matter. If a shunt resistor is placed across the positive supply rail, the measured voltage has, by definition, an offset equal to the supply voltage. lt is, of course, much simpler to place a resistor in series with the negative supply line, but, owing to various circumstances, that is not always possible. A better way is using the circuit shown in this article.
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