______________ circuit is most commonly used to measure strain with the help of a strain gauge?
Correct answer: B. Voltage balancing potentiometric
- A. Ballast
- B. Voltage balancing potentiometric
- C. Simple current sensitive
- D. None of these
Explanation
Strain gauges are commonly connected in a Wheatstone-bridge arrangement, often operated as a voltage-balancing circuit so very small resistance changes can be detected accurately. The wording of option b appears to be an imperfect description of this arrangement.
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