Electricity and Circuits: Inductors (id: b563e9e2d)

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]
10.45: For the ideal RL circuit shownnmn-gk chkk0vuzdo5 yz.+; 4-, the resistth7g.aax 65uspg,z::v4 it uu ance is R=10.0Ω, the inductance is L=5.0 H and the battertgah: gut 6pusui,x4. zv5 7:ay has voltage $\xi_{bat}$ = 12 vlots. Some time after the switch S in the circuit is closed, the ammeter in the circuit reads 0.40 A. At what rate is energy being stored by the inductor at this instant (in Watts)?

A. 0.40
B. 1.0
C. 2.0
D. 3.2
E. 4.8


参考答案:  D


本题详细解析: 暂无

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