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 constr :a)o n1eil e,+7c6yvthjuq-kucted with N 7wfe/qmn7-vb (fud9 0yec: ev loops of wire tightly wrapped around an iron-filled center. Due to budget cuts, the current that ordinarily runs through this solenoid is cut in half. As a result, t0/b(envm7 w: edyvf eq7-uc9fhe 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
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