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Strain is a _______

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Strain is a _______

(a) fractional change in volume

(b) fractional change in area

(c) fractional change in length

(d) fractional change in height

This question was posed to me in exam.

My question is based upon Strain Gauge Measurement Technique topic in chapter Transducers of Electrical Measurements

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Correct choice is (c) fractional change in length

The explanation is: Strain is defined as the fractional change in length of a body. A change in resistance of the element is reflected in the form of strain of the gauge as well as the element.

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