33. 有一負載電路接至交流電源,如下圖所示,交流電源v (t) =100sin(377t+20°)V,而經測量得知流過負載的電流i(t) =10sin(377-40°)mA,求 此負載的最大瞬間功率Pmax為何?
(A)1500W
(B)750W
(C)1500mW
(D)750mW
答案:登入後查看
統計: A(24), B(85), C(39), D(94), E(0) #2949600
統計: A(24), B(85), C(39), D(94), E(0) #2949600