下列说法正确的是 ( )。 -题库考试答案搜索网

下列说法正确的是 ( )。

单选题

2021-09-01 23:34

A、闭合回路上各点磁感强度都为零时,回路内一定没有电流穿过
B、闭合回路上各点磁感强度都为零时,回路内穿过电流的代数和必定为零
C、磁感强度沿闭合回路的积分为零时,回路上各点的磁感强度必定为零
D、磁感强度沿闭合回路的积分不为零时,回路上任意一点的磁感强度都不可能为零

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正确答案

B

试题解析

标签：青书学堂黑龙江省教育学院中学物理教学法（专升本）

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