Mathematics · Instrumentation
A 0-500 V voltmeter has an error of ±5% of full-scale deflection. If the true voltage is 50 V, then find its range of reading.
- 10 V to 50 V
- 20 V to 500 V
- 347.5 V to 52.5 V
- 425 V to 75 V✓
Correct answer
25 V to 75 V
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