Question: Ex Problem 1 A single 1 5 0 resistance strain gauge, having a gauge factor of 2 is mounted on a stress bar and is

Ex Problem

1

A single

150

resistance strain gauge, having a gauge factor of

2

is mounted on a stress bar and is connected into a symmetrical bridge circuit. When the steel bar is subjected to a tensile force, the output voltage of the unloaded bridge is

8 m V .

If the recommended operating current of the gauge is

25 m A,

solve the value of the mechanical strain.

Ex Problem 1 A single 150 resistance strain gauge, having a

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