One type of strain gauge consists of a long thin wire or foil that is folded multiple times, as shown in Figure 6.30. The strain gauge is embedded in an adhesive tape so that the gauge can be attached to a specimen. The wire strains the same amount as the specimen does. Determine the relationship between the change in resistance ?R and the strain (?). Assume that the resistivity (?) of the wire is constant over this strain range and that the material has a Poisson’s ratio of ?. This is a difficult problem.
What will be an ideal response?
Physics & Space Science
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Analysis of the solar spectrum shows that the Sun is mostly _____
A) helium B) hydrogen C) fluorine D) nitrogen
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In the diathesis-stress model, "diathesis" refers to...
What will be an ideal response?
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The wavelength of ultrasound at 1 million Hz in air where the speed of sound is 340 m/s is __________
Fill in the blank(s) with correct word
Physics & Space Science
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The velocity acquired after starting from rest is 8 m/s
a. True b. False Indicate whether the statement is true or false
Physics & Space Science