Discussion :: Measurements and Instrumentation
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Assertion (A): A semiconductor strain gauge is more accurate than a resistance strain gauge.
Reason (R): The gauge factor of a semiconductor strain gauge is about 100 where as the gauge factor of a resistance strain gauge is only about 2.
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A.
Both A and R are true and R is correct explanation of A
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B.
Both A and R are true but R is not correct explanation of A
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C.
A is true R is false
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D.
A is false R is true
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Answer : Option A
Explanation :
Higher gauge factor results in better accuracy.
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