A, 0-150V voltmeter has a guaranteed accuracy of 1 per cent

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A, 0-150V voltmeter has a guaranteed accuracy of 1 per cent full-scale reading. The voltage measured by this instrument is 83V. The limiting error in per cent will be—

1. 2·83%
2. 1·83%
3. 3·2%
4. None of these

Correct Option: B

Given voltmeter range 0–150V
measured value = 83V
The magnitude of the limiting error
= 0·01 × 150V = 1·5V
The percentage error at a meter indication of 83V will be

=	1.5	× 100 = 1.81 %
	83