Answer to Question #214444 in Electricity and Magnetism for Muthiah Afifah

Question

Identify the statement that is not true of ferromagnetic materials. (a) They have a large xm. (b) They have a fixed value of mr. (c) Energy loss is proportional to the area of the hysteresis loop. (d) They lose their nonlinearity property above the curie temperature.

Answer 1

Ferromagnetic

$\chi_m=large$

(1) correct

Ferromagnetic material fixed value of mr .

InCorrect option (2)

Energy loss is proportional to the area of the hysteresis loop

Option (3) is correct

The Curie temperature T_c Curie point is the temperature above which certain material lose their permanent magnetic properties which can be replaced by induced magnetism that Curie temperature is name after pierre Curie whose show that magnetism was lost a critical temperature

Option (4) correct