9702/12 Physics May Jun 2024 Online Test| Cambridge AS & A Level Grade MCQ
CIE
AS & A Level
Physics (9702)
شهریور
2024
مشاهده نمونه سوال
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تعداد سوالات: 40
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
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75 دقیقه
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Marila Lombrozo Tensile strain may be measured by the change in electrical resistance of a strain gauge. A strain gauge consists of folded fine metal wire mounted on a flexible insulating backing sheet. The strain gauge is firmly attached to the specimen, so that the strain in the metal wire is always identical to that in the specimen.
When the strain in the specimen is increased, what happens to the resistance of the wire?
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