Electricity and Circuits: Inductors (id: edd087709)

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]
05.50: A series RL cirejlvd97wsd peqw/ .j- *: 0dqjcuit is shown. Which of the suggested changes in the cirivep5 lxz9p 4 l*e/:clcuit (labeled I, II, and III) would result in the initial voltage across the inductor (at the instant that the switch is closed) to be double what xpz4llc59le /ei* :pv it is for the circuit shown?
I. Reduce the resistance in the circuit to R0/2.
II. Double the inductance in the circuit to 2L0.
III. Add a second identical inductor to the circuit in parallel with the first inductor.

A. Only change I
B. Only change II
C. Only change III
D. Changes I and II must be done together
E. None of the changes achieves the desired result.


参考答案:  E


本题详细解析: 暂无

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