对于处于静电平衡状态的导体,下列说法不正确的是( )
A. 导体为等位体
B. 导体内部电场为0;
C. 导体表面切向电场为0
D. 导体内部可能存在感应电荷
查看答案
一平面电磁波从一理想介质斜入射到一理想导体的表面,则在理想介质中传播的是( )
A. 纯驻波
B. 在法线方向上合成波的场量是驻波;
C. 在法线方向上合成波的场量是行波
D. 是均匀平面波。
以下关于边界条件的描述,正确的是( )
A. 电场强度切向分量连续;
B. 电场强度法向分量连续
C. 电位移矢量切向分量连续
D. 电位移矢量法向分量连续。
______________is the protagonist, and the main focus of the novel is on presenting, explaining, and developing her character.
A. Hester
B. Jane
C. Elizabeth
D. Isabel
Like many of James’s novels, the storyis set in Europe, mostly England and Italy. This novel reflects James’interest in ______________.
A. racism
B. the differences between the New World and the Old
C. the differences between the rich and the poor
D. rejection and request