A 线圈平面与磁感线方向垂直 B 通过线圈的磁通量达最大值 C 通过线圈的磁通量的变化率达最大值 D 线圈中的电动势为零

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163778057805.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163765386538.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163718661866.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163729452945.gif" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163796099609.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163789948994.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163735813581.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163746614661.gif" alt="" border="0" />

A 250V B 353.5V C 499.8V D 200V

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163716901690.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163762786278.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163748644864.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163799879987.gif" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151353445344.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151345044504.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151477277727.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151468296829.jpg" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151437723772.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151451845184.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111151447044704.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/2013011115140788788.jpg" alt="" border="0" />

A 电场强度为零的区域内，各点电势一定相等 B 电场强度不变的区域内，各点电势一定相等 C 电场强度较大处，电势一定较高 D 电场强度较大处，电势一定较低

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153854545454.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153833203320.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153861266126.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153855115511.jpg" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153990579057.jpg" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153967016701.jpg" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153976727672.jpg" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130111153990269026.jpg" alt="" border="0" />