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]
Consider two current-carrying circular 3 iaknr-e(ku5loops. Both are made f5c* 0lgx yx)gaxhb5g0 rom one strand of wire and both carry the same current, but one has twice the radius of the other. Compared to the magnetic field at the center of the smaller loop, the magnetic field at the center of the larg5 5g0yg x0clx h*b)gaxer loop is
A. 8 times stronger.
B. 4 times stronger.
C. 2 times stronger.
D. none of the given answers
参考答案: D
本题详细解析:
暂无
| 
