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22.在常用電壓110 V下若某延長線之容許電流為12安培,則在該線路上之所有用電器具之總耗電功率不得超過多少?(A) 1320 W (B) 1450 W (C)1860 W (D) 1980 W
問題詳情
22.在常用電壓110 V下若某延長線之容許電流為12安培,則在該線路上之所有用電器具之總耗電功率不得超過多少?
(A) 1320 W
(B) 1450 W
(C)1860 W
(D) 1980 W
參考答案
答案:A
難度:簡單0.890323
統計:A(138),B(5),C(3),D(1),E(0)
用户評論
【用戶】
我混故我在
【年級】高三下
【評論內容】電功率=電壓*電流P=V*I=110*12=1320W
【用戶】
楊翰傑 (小傑)
【年級】國三上
【評論內容】P=VI
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