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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