A 0-200 V voltmeter has an accuracy of 0.75% of full scale reading. If voltage measured is 100 V, the error is3%2%1.5%75%4%
Question
A 0-200 V voltmeter has an accuracy of 0.75% of full scale reading. If voltage measured is 100 V, the error is3%2%1.5%75%4%
Solution
The error is calculated based on the full scale reading, not the actual measurement. The full scale reading in this case is 200 V. The accuracy is 0.75% of the full scale reading, which is 0.0075 * 200 = 1.5 V. Therefore, when measuring a voltage of 100 V, the error is 1.5 V / 100 V = 0.015 or 1.5%. Therefore, the answer is "1.5%".
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