Skip to content

Categories:

範例:電磁感應與磁力[99學測]

由長金屬管管口靜止釋放一N極向下鉛直放置的磁棒,如圖8。若金屬管之任一橫截面均可視為一封閉的金屬線圈,此時磁棒正遠離A線圈而接近B線圈,則下列敘述,哪些正確?(應選2項)

(A)磁棒於金屬管中下落較在管外下落慢
(B)磁棒於金屬管中的下落過程僅受重力
(C)由上向下看A線圈上之感應電流方向為順時針方向
(D)由上向下看B線圈上之感應電流方向為順時針方向
(E)磁棒與A線圈之磁力為斥力,與B線圈之磁力為引力

相關文章:

Posted in 電磁感應.

Tagged with , , , , .


0 Responses

Stay in touch with the conversation, subscribe to the RSS feed for comments on this post.

You must be logged in to post a comment.



10 visitors online now
4 guests, 6 bots, 0 members
All time: 479 at 08-18-2020 08:10 pm UTC
Max visitors today: 26 at 12:49 am UTC
This month: 56 at 05-01-2024 08:12 pm UTC
This year: 213 at 04-17-2024 12:31 am UTC