Pick out the wrong statement. (A) A ferromagnetic material becomes paramagnetic above the 'Curie temperature' (B) Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials (C) Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces (D) Tungsten steel and alnico are not hard magnetic materials

Pick out the wrong statement.
(A) A ferromagnetic material becomes paramagnetic above the 'Curie
temperature'
(B) Permanent magnets are made of hard materials, whereas electromagnets
require soft magnetic materials
(C) Soft magnetic materials (e.g., pure iron) have higher permeability and
low hysterisis loss and coercive forces
(D) Tungsten steel and alnico are not hard magnetic materials
by

1 Answer

Answer :

Option D
by

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