Phy past paper II 2005 Q.22
Since it is difficult for me to upload the picture, please refer to your past paper 2005.
Thanks
Phy past paper II 2005 Q.22 ((10marks))
2007-04-21 7:13 am
回答 (1)
2007-04-21 7:42 am
✔ 最佳答案
There are two current.One on the left is flowing out and the one on the right is flowing in.So, u can use right hand grip rule to grip the current and find out the magnetic field around them.The middle magnetic field is just the enlarge field of the two current.
參考: books
收錄日期: 2021-04-23 16:54:26
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https://hk.answers.yahoo.com/question/index?qid=20070420000051KK04952