20.若將目前台電所供應的市電 110V/60Hz 以電壓瞬時值來表示,下列何者正確?
(A)v(t) = 110sin(377t)
(B)v(t) =110
sin(377t)
(C)v(t) = 110sin(314t)
(D)v(t) = 110
sin(314t)
答案:登入後查看
統計: A(11), B(222), C(11), D(9), E(0) #2194509
統計: A(11), B(222), C(11), D(9), E(0) #2194509