The figure gives experimentally measured B Vs H variation in a ferromagnetic material. The retentivity, co-ercivity respectively of the material are:
1.0 T,100 A/m
1.0 T,200 A/m
1.5 T,100 A/m
1.5 T,200 A/m
x = retentivity ; y = coercivity
Hence, x = 1 and y = 100