Magnetic materials used for making permanent magnets

Question:

Magnetic materials used for making permanent magnets (P) and magnets in a transformer (T) have different properties of the following, which property best matches for the type of magnet required ?

 

  1. $\mathrm{T}$ : Large retentivity, small coercivity

  2. $P$ : Small retentivity, large coercivity

  3. T : Large retentivity, large coercivity

  4. $\mathrm{P}$ : Large retentivity, large coercivity


Correct Option: , 4

Solution:

As for permanent magnet large retentivity and large coercivity required

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