A.u=Ri B.u=-Ri C.u=R∣i∣
A.Y=1/R+j(ωC-1/ωL) B.Y=1/R+j(ωL-1/ωC) C.Y=1/R+j(ωC+1/ωL) D.Y=1/R+j(ωL+1/ωC)
A.14.14 B.10 C.20 D.7.07
A.500var B.433var C.-433var D.-250var