Screw Gauge: reading a wire diameter
Measure a hidden wire with a 3D micrometer screw gauge: find pitch, least count, zero error and read the circular scale to get the diameter.
About this experiment
| Subject | Physics |
|---|---|
| Class | 11 |
| Chapter | 1. Units and Measurement |
| NCERT section | 1.3 |
| Level | NCERT level |
| Time | about 10 minutes |
| Access | Free, no card needed |
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: screw gauge · least count · zero error · pitch · measurement