Young's modulus by Searle's apparatus
Load a wire in a Searle's apparatus, read the extension on a micrometer and plot load vs extension; Y = mgL/(πr²ΔL). Compare steel, copper and brass and see elastic after-effect.
About this experiment
| Subject | Physics |
|---|---|
| Class | 11 |
| Chapter | 8. Mechanical Properties of Solids |
| NCERT section | 8.3, 8.5 |
| Level | NCERT level |
| Time | about 12 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: Young's modulus · Searle · extension · Hooke's law · wire