关于产生感应电流的条件,以下说法中正确的是 A.闭合电路在磁场

关于产生感应电流的条件,以下说法中正确的是

A.闭合电路在磁场中运动,闭合电路中就一定有感应电流产生

B.闭合电路在磁场中作切割磁感线运动,闭合电路中一定有感应电流产生

C.穿过闭合电路的磁通量为零的瞬间,闭合电路中一定没有感应电流产生

D.只要穿过闭合导体回路的磁通量发生变化,闭合导体回路中就有感应电流产生

答案

D

相关题目

在“研究平抛物体运动”的实验中测v0时产生误差,下列原因
在“研究平抛物体运动”的实验中测v0时产生误差,下列原因与误差产生无关的是(    )A.弧形槽与球间有摩擦B.弧形槽末端切线不水平C.小球受空气
在中国的奴隶社会,文字发展的顺序是(     )A、甲骨文
在中国的奴隶社会,文字发展的顺序是(     )A、甲骨文—金文—大篆                    B、金文—大篆—甲骨文 C、甲骨文—大篆—金文 
Our teacher told us to speak English as much as possible.(相近的选项)
Our teacher told us to speak English as much as possible.(相近的选项) A. as much as we could            B. much more  C. as much as I can                D. mu
--- I had thought he would be nervous in this speech competition, but he turned
--- I had thought he would be nervous in this speech competition, but he turned out to be calm. --- He        quite enough preparation for it.        A.should do  B.must do   
.对于烃的命名正确的是( ) A.4﹣甲基﹣4,5﹣二乙基己
.对于烃的命名正确的是( ) A.4﹣甲基﹣4,5﹣二乙基己烷    B.3﹣甲基﹣2,3﹣二乙基己烷 C.4,5﹣二甲基﹣4﹣乙基庚烷    D.3,4﹣二甲基﹣
 As long as you’ve paid in advance, we won’t ______ you ______ delivery.
 As long as you’ve paid in advance, we won’t ______ you ______ delivery.   A. charge; for          B. charge; with        C. pay; for                     D.
对你不应该知道的事情,不要感到好奇。(be curious about) _______
对你不应该知道的事情,不要感到好奇。(be curious about) ___________________________________________________________
关于日本和英国的叙述,正确的是(   ) A.两国均是岛国
关于日本和英国的叙述,正确的是(   ) A.两国均是岛国,工业均为“临海型”布局          B.两国农业均以畜牧业为主 C.两国均为发达的工

最新题目