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Consider the dc voltage measurement shown in figure, in which a 3 digital multimeter (DMM) is used as dc voltmeter, measuring . Obtain the minimum absolute value of the uncertainty associated to this voltage reading, i.e. in the reading result .
The dc voltmeter accuracy performance is shown next.
| range | accuracy |
|---|---|
| 400 mV | |
| 1-1 4 V | |
| 1-1 40 V | |
| 1-1 400 V |
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