Question

For a permanent magnet, properties of material should be

• A. high retentivity high coercivity
• B. low retentivity law coercivity
• C. high retentivity low coercivity
• D. low retentivity high coercivity

Answer 1

The correct option is A high retentivity high coercivity

Given :For a permanent magnet, properties of material should be

Solution :

A good permanent magnet should produce a high magnetic field with a low mass and should not loose its magnetic property easily under influence of externa agent. So it should be of high coercivity and high retentivity.

The Correct Opt:A