http://img585.imageshack.us/img585/9938/60642151.jpg
圖片參考：http://img585.imageshack.us/img585/9938/60642151.jpg
pht-magnetism(2)
2011-10-22 5:43 am
回答 (1)
2011-10-22 6:35 am
✔ 最佳答案
a) n = 2 x 1000 = 2000 turns per m.So B at centre of the solenoid = 4π x 10-7 x 2000 x 5 = 0.01257 T
b) B at the mouth of the solenoid = 0.01257/2 = 0.006283 T
參考: 原創答案
收錄日期: 2021-04-20 11:42:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111021000051KK00806