Two shields of the same outer size are placed in the same alternating magnetic field: (I) a solid mild-steel plate, (II) an identical plate built by stacking thin insulated laminations of mild steel. Which statement correctly compares their performance?
(a) Plate II attenuates the field more but heats up less than Plate I
(b) Plate I attenuates the field more but heats up less than Plate II
(c) Plate I attenuates the field more and heats up more than Plate II
(d) Both plates provide nearly the same attenuation, but Plate I heats up more than Plate II