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Measurements and Instrumentation - Engineering

Q1:

A wire strain gauge has a gauge factor of 2, resistance of 125 Ω and length 1 m. If length of wire changes by .005 m, change in resistance will be

A 0.25 Ω

B 0.5 Ω

C 1.25 Ω

D 2.5 Ω

ANS:C - 1.25 Ω

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