Question

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

• 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

Answer: (D)

High retentivity, high coercivity and high permeability

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