本题目来源于试卷: Physics Unit20: Magnetism，类别为 国际高中通用物理
[单选题]
What is the magnetic fikfirtw * 65:0z8rjoiield at the cvqo.56elmp7/z6 f9 edcbl va+enter of a circular loop of wire of radius 4.0 cm when a current of 2.0 A flows in thql /7ob+669fmvez5.c plvdaee wire?
A. $1.3 \times 10^{-6} \; T$
B. $3.1 \times 10^{-6} \; T$
C. $1.3 \times 10^{-5} \; T$
D. $3.1 \times 10^{-5} \; T$
参考答案: D
本题详细解析:
暂无
| 
