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![已知正弦交流电压u=100sin(2ωt+60°)V,其频率为()。 A.50Hz B.2πHz C.2Hz D.1Hz](https://img2.soutiyun.com/shangxueba/askcard/2024-01/21/241/20240121183357960.jpg)
[单选题]
已知正弦交流电压u=100sin(2ωt+60°)V,其频率为( )。
A.50Hz
B.2πHz
C.2Hz
D.1Hz
提问人:网友anonymity
发布时间:2022-01-06
A.50Hz
B.2πHz
C.2Hz
D.1Hz
A.u=100sin(100πt+30°)
B.u=100sin(100πt-30°)
C.u=100sin(100πt+150°)
D.u=100sin(100πt-150°)
A.100sin(50t+30°)
B. 141.4sin(50πt)
C. 200sin(100πt+30°)
D. 200sin(50πt+30°)
A.100sin(50t+30°)
B.141.4sin(50πt)
C.200sin(100πt+30°)
D.200sin(50πt+30°)
正弦交流电压u=100sin(628t+60°) , 它的电压有效值为(),初相是()。
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