Metre bridge and Wheatstone bridge
Find an unknown resistance with a metre bridge: slide the jockey until the galvanometer shows zero, read the balance length and use R/S = l/(100 − l). See the null-point condition, accuracy near the middle of the wire and end corrections.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 3. Current Electricity |
| NCERT section | 3.12 |
| Level | NEET level |
| Time | about 14 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: Wheatstone bridge · metre bridge · null method · resistance
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