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A digital voltmeter has a read out range from 0 to 999 counts. If the full scale reading is 9.999 V, the resolution is

1 V
0.01 V
1 mV
1 μV

Correct Answer: 1 mV

Explanation:

Resolution is the smallest change in the quantity being measured which will cause an observable change in output. In this case it is 1 mV.

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