Three voltmeters are available with ranges

PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

Three voltmeters are available with ranges (a)

0

–

3\,\text{V}

, (b)

0

–

10\,\text{V}

and (c)

0

–

15\,\text{V}

. Each has the same least count of

0.1\,\text{V}

. Which voltmeter would you select to measure a potential difference expected to be about

2.8\,\text{V}

? Give one reason for your choice.