试题与答案

下列关于磁感应强度大小的说法中正确的是( ) A.通电导线受磁场力大的地方,磁感

题型:选择题

题目:

下列关于磁感应强度大小的说法中正确的是(  )

A.通电导线受磁场力大的地方,磁感应强度一定大

B.一小段通电导线放在某处不受磁场力作用,则该处的磁感应强度一定为零

C.磁感线的指向就是磁感应强度减小的方向

D.磁感应强度的大小和方向跟放在磁场中的通电导线受力的大小无关

答案:

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参考答案:D

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