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Strain gauge has a _______(a) low temperature coefficient of resistance(b) high temperature coefficient of resistance(c) zero temperature coefficient of resistance(d) infinite temperature coefficient of resistanceI had been asked this question by my college professor while I was bunking the class.Question is taken from Characteristics of Resistance Wire Strain Gauge topic in chapter Transducers of Electrical Measurements

Answer»

Correct CHOICE is (a) low temperature coefficient of RESISTANCE

Easiest explanation: The strain GAUGE has a low temperature coefficient of resistance. Due to temperature variation, ERRORS can be MINIMISED in this way. In most of the strain gauges, temperature compensation is provided.



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