Question

Materials suitable for permanent magnets, must have which of the following properties ?

​​​​​​​$[$1 Mark$]$

• A. High retentivity, low coercivity and high permeability
  
• B. Low retentivity, low coercivity and low permeability
• C. Low retentivity, high coercivity and low permeability
• D. High retentivity, high coercivity and high permeability
  

Answer 1

The correct option is D High retentivity, high coercivity and high permeability


Materials suitable for permanent magnets should have high retentivity, high coercivity and high permeability.