阿摩線上測驗
12.某單相負載之電壓為 v(t)=200cos(377t+40 )° 伏特、電流為i(t) = 10cos(377t + 10°)安培，則負載 的瞬時功率為多少瓦特？
(A) 1000[cos(377t+50° )+cos(30° )]
(B) 2000[cos(377t+50° )+cos(30° )]
(C) 1000[cos(754t+50 °)+cos(30° )]
(D) 2000[cos(754t+50° )+cos(30° )]
答案：登入後查看
統計： A(5), B(8), C(13), D(3), E(0) #1529078
統計： A(5), B(8), C(13), D(3), E(0) #1529078
