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Q. |
Resistance wire strain gauge works on the principle |
A. | That conductivity is directly proportional to load on member |
B. | Due to elongation length increases and diameter reduces, thereby resistance changes |
C. | That resistance chanes in proportion to strain on material |
D. | That resistance of wire changes with load |
E. | That the resistance of a wire is directly proportional to diameter and inversely proportional to length |
Answer» B. Due to elongation length increases and diameter reduces, thereby resistance changes |
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