变压器的铁芯硅钢片( )。

A.片厚则涡流损耗大，片薄则涡流损耗小

B.片厚则涡流损耗大，片薄则涡流损耗大

C.片厚则涡流损耗小，片薄则涡流损耗小

D.片厚则涡流损耗小，片薄则涡流损耗大