A strain gauge arrangement is used
to measure the applied force of a comnplex shaped civil engineering structure.
Theoretical analysis have been round the relationship between the strain gauge
deformnation nd force of the structure aswherefis applied
rorcedis gauge deformation and abare
parameters. Experiments are carried out by applying load to the structure. The
experimental results are given in the table below.f(N)50100150200250d(cm)x1.251.731.922.082.15a]
Use appropriate operations to
convert the relationship into a linear relationship. b] Tabulate corresponding values ofxandy axes. c)Plot the relevant linear graph aiid
using the graph find the value of a andb. d] Using an appropriate teclrnique
ifhd the values of gauge deformation.dwhenfrl25N
and 275N
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