Bar magnet: field lines and the tan-A / tan-B positions
See the 3D field lines of a magnetic dipole, sprinkle a compass grid, and use a deflection magnetometer on the axial (tan A) and equatorial (tan B) lines to verify B_axial = 2B_equatorial and B ∝ 1/d³.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 5. Magnetism and Matter |
| NCERT section | 5.2, 5.3 |
| 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: bar magnet · magnetic field lines · dipole · deflection magnetometer · tan A · tan B