A.R1/R2=2,I1/I2=2 B.R1/R2=1/2,I1/I2=2 C.R1/R2=2,I1/I2=1/2 D.R1/R2=1/2,I1/I2=1/2
A.R1/R2=2,U1/U2=2 B.R1/R2=2,U1/U2=1/2 C.R1/R2=1/2,U1/U2=2 D.R1/R2=1/2,U1/U2=1/2
A.I1/I2=2,P1/P2=2 B.I1/I2=2,P1/P2=4 C.I1/I2=1/2,P1/P2=1/2 D.I1/I2=2,P1/P2=1/4