問題詳情
53. The emf E = 1.2 kV, C = 6.5 μF, R1 = R2 = R3 = 0.73 MΩ. With C completely uncharged, switch S is suddenly closed (at t = 0).At t = 0, what is current i1 in resistor R1?
(A) 3.3✖10-3 A
(B) 3.3✖10-4 A
(C) 1.1✖10-4 A
(D) 1.1✖10-3 A
(E) 2.2✖10-3 A