Figure 1 Apparatus used for determing the Young modulus by measuring small strains
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and Highers/Advanced Highers exam specifications.
This article takes you inside a materials testing lab where measurements of strain and stress are used to determine the Young modulus. You can see how strain affects the resistance of a sensor, and how the resulting change can be detected as a voltage signal in a bridge circuit.
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