Question

Metamagnetism is a property by virtue of which

• A. A magnetic material becomes a permanent magnet
• B. A magnetic material becomes a diamag-netic
• C. Retains magnetism even after the removal of external magnetic field
• D. There is an increase in the magnetisation of a material with a small change in an externally applied magnetic field

Answer 1

The correct option is D There is an increase in the magnetisation of a material with a small change in an externally applied magnetic field

Metamagnetisation is a sudden increase in the magnetisation of a material with a small change in an external applied magnetic field. There are different physical course of different typed of Metamagnets.