A single turn of metal square loop in free space has each side = L and carries a current I. Now a coordinate system is introduced with its origin at a corner of the loop and axes aligned with two adjacent sides as follows:
圖片參考：http://i1191.photobucket.com/albums/z467/robert1973/Nov11/CrazyEM1.jpg
Question: Derive an expression of the magnitude of the magnetic flux density at point P(x, y) for 0 < x, y < L
(Note: Each side of the loop CANNOT be treated as infinitely long.)
Challenging magnetism 3
2011-11-17 11:11 pm
回答 (1)
2011-11-27 5:50 pm
✔ 最佳答案
圖片參考：http://i212.photobucket.com/albums/cc82/doraemonpaul/yahooknowledge/magnetism/squareloop9.jpg
參考資料：
my physics knowledge + my maths knowledge + formula from http://en.wikipedia.org/wiki/List_of_integrals_of_irrational_functions + graph from http://www.wolframalpha.com/input/?i=plot%28x%5E2%2By%5E2%29%5E%281%2F2%29%2F%28xy%29%2B%28%281-x%29%5E2%2By%5E2%29%5E%281%2F2%29%2F%28%281-x%29y%29%2B%28x%5E2%2B%281-y%29%5E2%29%5E%281%2F2%29%2F%28x%281-y%29%29%2B%28%281-x%29%5E2%2B%281-y%29%5E2%29%5E%281%2F2%29%2F%28%281-x%29%281-y%29%29 + compare the result with http://hk.knowledge.yahoo.com/question/question?qid=7007012702039
收錄日期: 2021-04-30 01:21:27
原文連結 [永久失效]:
http://hk.knowledge.yahoo.com:80/question/question?qid=7011111700428