When a ferromagnetic material is heated above its Curie temperature , the material

Options

A. Becomes permanently magnetized
B. Becomes diamagnetic
C. Becomes paramagnetic
D. Remains ferromagnetic

Answer

To solve the question regarding the behavior of a ferromagnetic material when heated above its Curie temperature, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Curie Temperature**:
- The Curie temperature (Tc) is the temperature above which a ferromagnetic material loses its ferromagnetic properties and becomes paramagnetic.

2. **Behavior Below Curie Temperature**:
- Below the Curie temperature, ferromagnetic materials exhibit strong magnetic properties due to the alignment of magnetic moments in the material.

3. **Behavior Above Curie Temperature**:
- When the temperature of the ferromagnetic material is increased beyond the Curie temperature, the thermal energy becomes sufficient to disrupt the alignment of the magnetic moments.

4. **Transition to Paramagnetism**:
- As a result of this disruption, the material transitions from a ferromagnetic state to a paramagnetic state. In the paramagnetic state, the material will exhibit weak magnetic properties and will only be magnetized in the presence of an external magnetic field.

5. **Conclusion**:
- Therefore, when a ferromagnetic material is heated above its Curie temperature, it behaves like a paramagnetic material.

### Final Answer:
When a ferromagnetic material is heated above its Curie temperature, it becomes paramagnetic.

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