本题目来源于试卷: Electricity and Circuits: Inductors，类别为 美国物理杯赛(Physics Bowl)
[单选题]
06.42 A solenoid is construb9 -y8fqi9 ahgw d8j:octed with N loops ofi;h x -y8( -4jqhmto0 ul8pheq wire tightly wrapped around an iron-filled center. Due to budget cuts, the current that ordinarily runs through this solenoid is cut in half.q 0moiux;hh q8hl8t -p( y4ej- As a result, the inductance of the solenoid is
A. unchanged.
B. quartered.
C. halved.
D. doubled.
E. quadrupled.
参考答案: A
本题详细解析:
暂无
| 
