题目内容


有一段直导线长1cm,通以5A电流.当把导线置于磁场中某点时,受到的磁场力为0.1N,则该点磁感应强度B的值可能为(    )                                                                                                                 

    A. 1 T      B.                   1.5 T                 C.    2 T  D. 2.5 T

                                                                                                                                      

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