Key relationship
Curie paramagnet: χ=C/T. Ferromagnetic order weakens above TC.
Physics · Class 12
Magnetization and temperature
Higher temperature disrupts alignment. Paramagnetic χ follows a Curie law here; the illustrative ferromagnetic response loses its strong ordering above the chosen Curie temperature.
Open the interactive experiment →Magnetization and temperature
வெப்பநிலை உயர்ந்தால் காந்த ஒழுங்கு குறையும். கியூரி வெப்பத்திற்கு மேல் வலுவான இரும்புக் காந்த ஒழுங்கு மறையும்.
Key notes, relationships and model limits
Remember
Higher temperature disrupts alignment. Paramagnetic χ follows a Curie law here; the illustrative ferromagnetic response loses its strong ordering above the chosen Curie temperature.
Common trap
Curie-law temperature is in kelvin. A simple temperature guide does not reproduce hysteresis or domain motion.
Model limits
Pedagogical temperature-response law, not a fitted material dataset; no hysteresis, critical singularity or phase-transition prediction.
What you will learn
Use the controls and plotted relation to explain magnetization and temperature.
Try the experiment
Try both scenarios, change one control, and predict the result before checking the graph and readouts.
Think of it this way
Change one input while keeping the others fixed, as you would in a controlled experiment.
Worked example
For C=0.3 K, χ=0.001 at 300 K and 0.0005 at 600 K.
Why this matters
The model connects magnetization and temperature with an observable reading. Check the equation and assumptions before applying it.
Before you start
SI units · algebra · graph reading
Check your understanding
According to χ=C/T, doubling absolute temperature does what to χ?
- Doubles it.
- Halves paramagnetic susceptibility.
- Leaves it constant.
Read the explanation
Halves paramagnetic susceptibility.
Course connection: Class XII Chapter 5. Consult the roadmap for CBSE, NEET, JEE Main and Advanced scope.