Discussion :: Measurements and Instrumentation
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A 300 V voltmeter has an accuracy of ± 2% of full scale deflection. When the reading is 222 V, the actual voltage
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A.
lies between 217.56 and 226.44 V
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B.
lies between 217.4 and 226.6 V
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C.
lies between 216 and 228 V
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D.
is exact 222 V
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Answer : Option C
Explanation :
Error = ± 6 V. Therefore, the actual value would be between 222 ± 6 V.
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