A single element strain gauge bridge has two fixed resistances R1 and – McqOptions

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1.	A single element strain gauge bridge has two fixed resistances R1 and R1 of 120 &ohm; each and a variable resistance which gives full deflection at 120 &ohm; for zero strain and 120.6 &ohm; for straine e. If gauge factor is 2, strain e is
A.	0.0025
B.	0.0035
C.	0.005
D.	0.0075
Answer» B. 0.0035

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