Condensed Matter Physics-Elastic Properties (CSIR Physical Sciences): Questions 1 - 1 of 1

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Question number: 1

» Condensed Matter Physics » Elastic Properties

Appeared in Year: 2012

MCQ▾

Question

A resistance strain gauge is fastened to a steel fixture and subjected to a stress of 1000kgm2 . If the gauge factor is 3 and the modulus of elasticity of steel is 2×1010kgm2 , then the fractional change in resistance of the strain gauge due to the applied stress is –

(Note: The gauge factor is defined as the ratio of the fractional change in resistance to the fractional change in length. ) (June)

Choices

Choice (4) Response

a.

0.16×1010

b.

1.5×107

c.

0.5×107

d.

3.0×10

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