問題詳情
17．有关洛仑兹力和安培力的描述，正确的是
(A)通电直导线处于匀强磁场中一定受到安培力的作用
(B)安培力是大量运动电荷所受洛仑兹力的宏观表现
(C)带电粒子在匀强磁场中运动受到洛仑兹力做正功
(D)通电直导线在磁场中受到的安培力方向与磁场方向平行
(A)通电直导线处于匀强磁场中一定受到安培力的作用
(B)安培力是大量运动电荷所受洛仑兹力的宏观表现
(C)带电粒子在匀强磁场中运动受到洛仑兹力做正功
(D)通电直导线在磁场中受到的安培力方向与磁场方向平行
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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