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3. D頻率為 f=週/秒,則其角速度為(A)1/(2πf),(B) (πf)/2,(C) πf,(D)2πf。
問題詳情
3. D頻率為 f=週/秒,則其角速度為
(A)1/(2πf),
(B) (πf)/2,
(C) πf,
(D)2πf。
參考答案
答案:C
難度:
計算中
-1
書單:
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2.e = 30 sin(ωt + 300),i = 10 sin(ωt + 300),(A)e 超前 i 600,(B) e 超前 i 300 ,(C) e、i 同相,(D) e、i 異相。
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