A.220sin(ωt+90°)V B.220sin(ωt-30°)V C.

考试题库2022-08-02  36

问题 A.220sin(ωt+90°)VB.220sin(ωt-30°)VC.220sin(ωt-150°)VD.220sinωV

选项 A.220sin(ωt+90°)V
B.220sin(ωt-30°)V
C.220sin(ωt-150°)V
D.220sinωV

答案 B

解析
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