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Commonly used elements for wire strain gauges are __________

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in Electrical Measurements by (148k points)
Commonly used elements for wire strain gauges are __________

(a) nickel and copper

(b) nickel and gold

(c) gold and brass

(d) silver and aluminium

This question was addressed to me by my college professor while I was bunking the class.

My question is from Operation of Strain Gauges topic in chapter Transducers of Electrical Measurements

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Correct choice is (a) nickel and copper

Best explanation: Nickel and copper are the most commonly used elements for wire strain gauges. They comprise of 45 % of Nickel and 55 % of Copper. They exhibit a high value of specific resistance.

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