设流经图示电感元件的电流i=2sin1000t,若L=1mH,则电感电压: A. uL = 2sin1OOOtV B. uL=-2cos1000tV C. u

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问题 设流经图示电感元件的电流i=2sin1000t,若L=1mH,则电感电压:

选项 A. uL = 2sin1OOOtV
B. uL=-2cos1000tV
C. uL的有效值UL = 2V
D. uL的有效值UL = 1.414V

答案D

解析
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