原帖由 qwer 於 2016-2-4 09:38 AM 發表
If the current flows from R to S, and the force needed is upward, by left hand rule, RHS of the solenoid(view from top) is No ...
原帖由 antonyluk 於 2016-2-5 12:07 AM 發表
As you said, it should look like this.
當前時區 GMT+8, 現在時間是 2017-1-23 12:22 AM
- Archiver - WAP - TOP
Powered by Discuz! 6.0.0 © 2001-2007 Comsenz Inc.
Processed in 0.023737 second(s), 9 queries.