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Measurements and Instrumentation

Q1: A 300 V voltmeter has an accuracy of ± 2% of full scale deflection. When the reading is 222 V, the actual voltage

A lies between 217.56 and 226.44 V

B lies between 217.4 and 226.6 V

C lies between 216 and 228 V

D is exact 222 V

ANS:C - lies between 216 and 228 V

Error = ± 6 V. Therefore, the actual value would be between 222 ± 6 V.



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