A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163041094109.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163016411641.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/2013010816300290290.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163028952895.gif" alt="" border="0" /> <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163056135613.jpg" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163027572757.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163055795579.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163045054505.gif" alt="" border="0" /> D 同一小段通电直导线在a处受力一定比b处小

A 只有a图 B a、b、C、d四图中都可以 C 只有b、c两图 D c、d两图中都可以

A 上下平动 B 左右平动 C 以ab为轴转动 D 以cd为轴转动

A 导体做切割磁感线运动时，一定有感应电流产生 B 导体在磁场中运动时，一定有感应电动势产生 C 穿过闭合电路的磁通量发生变化时，就一定有感应电流产生 D 穿过闭合电路的磁通量发生变化时，一定产生感应电动势，不一定产生感应电流

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163517081708.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163550835083.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163513181318.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163557065706.gif" alt="" border="0" /><img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163569616961.jpg" alt="" border="0" />

A 因为ad、bc切割磁感线，所以MP有方向向下的电流 B 因为ad、bc切割磁感线，所以MP有方向向上的电流 C 因为ad、bc切割磁感线运动产生的感应电流相互抵消，所以MP中没有感应电流 D 虽然ad、bc切割磁感线，但通过abcd闭合回路的磁通量不变，所以MP中没有感应电流

A <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163678977897.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163659945994.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163698249824.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163680688068.gif" alt="" border="0" />

A <img src="https://www.beizhujiaoyu.com/uploads/202208/2013010816360314314.gif" alt="" border="0" /> B <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163687628762.gif" alt="" border="0" /> C <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163686198619.gif" alt="" border="0" /> D <img src="https://www.beizhujiaoyu.com/uploads/202208/20130108163657045704.gif" alt="" border="0" />

A 电流表的读数减小 B 电流表的读数增大 C 电压表的读数增大 D 电压表的读数减小