Magnetic hysteresis loop (B-H curve)
Cycle the magnetising field H on iron, steel and soft iron cores and trace the B–H loop: retentivity, coercivity, saturation and loop area (energy loss) decide use as permanent magnet or transformer core.
About this experiment
| Subject | Physics |
|---|---|
| Class | 12 |
| Chapter | 5. Magnetism and Matter |
| NCERT section | 5.7 |
| 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: hysteresis · retentivity · coercivity · ferromagnetism · B-H curve