本题目来源于试卷: Physics Unit21: Electromagnetic Induction & Faraday's Law，类别为 通用国际物理
[单选题]
A resistor and an inductof8qx ;k z5)rkcr are connected in series to t;p+w m8hyau/ l74edvwc7yj 6a battery. The battery is suddenly remove/de+ 4h68tacwplvuj wy ;my77d from the circuit. The time constant for of the circuit represents the time required for the current to decrease to
A. 25% of the original value.
B. 37% of the original value.
C. 63% of the original value.
D. 75% of the original value.
参考答案: B
本题详细解析:
暂无
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