Measurements and Instrumentation

Q1: Consider the following Statements regarding resistance strain gauge
  1. The gauge factor is in the range of 2 to 5.
  2. The resistance changes due to change in specific resistance with strain.
  3. The resistance increases with increase in temperature.
Of the above statements, which are correct?

A 1, 2, 3

B 1 and 2

C 2 and 3

D 1 and 3

ANS:D - 1 and 3

The change in resistance is due to change in length and area of cross-section.



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