Strain gauge works on the principle of _______(a) piezo-electric effect(b) barkhausen criterion(c) piezo- resistive effect(d) feedback element effectI got this question by my college director while I was bunking the class.This interesting question is from Characteristics of Resistance Wire Strain Gauge topic in chapter Transducers of Electrical Measurements

Strain gauge works on the principle of _______(a) piezo-electric effec

1.	Strain gauge works on the principle of _______(a) piezo-electric effect(b) barkhausen criterion(c) piezo- resistive effect(d) feedback element effectI got this question by my college director while I was bunking the class.This interesting question is from Characteristics of Resistance Wire Strain Gauge topic in chapter Transducers of Electrical Measurements
Answer» Right choice is (C) PIEZO- resistive effect Explanation: A semiconductor strain gauge works on the PRINCIPLE of piezo-resistive effect. Piezo-resistive effect is the change in the value of the resistance due to a change in the resistivity of the semiconductor.

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