下面的结论中,正确的是()。-查字典考试网

下面的结论中,正确的是()。

A、空心励磁线圈所产生磁场和铁心励磁线圈所产生磁场的B—H关系均为非线性
B、空心励磁线圈所产生磁场和铁心励磁线圈所产生磁场的B—H关系均为线性
C、空心励磁线圈所产生磁场的B—H关系为线性、铁心励磁线圈所产生磁场的B—H关系为非线性
D、空心励磁线圈所产生磁场的B—H关系为非线性、铁心励磁线圈所产生磁场的B—H关系为线性

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