优质解答
人教版吗?U=6V I1=0.2A U2=4V
R1 R2串联 I2=I1=0.2A
U1=U-U2=6V-4V=2V
I=U:R R1=U1:I1 =2V/0.2A=10欧
R2=U2/I2=4V/0.2A=20欧
R1 R2 并联
U'1=U'2=U=6V
I1'=U1'/R1=6V/10欧=0.6A
I'2=U2'/R2=6V/20欧=0.3A
人教版吗?U=6V I1=0.2A U2=4V
R1 R2串联 I2=I1=0.2A
U1=U-U2=6V-4V=2V
I=U:R R1=U1:I1 =2V/0.2A=10欧
R2=U2/I2=4V/0.2A=20欧
R1 R2 并联
U'1=U'2=U=6V
I1'=U1'/R1=6V/10欧=0.6A
I'2=U2'/R2=6V/20欧=0.3A