电源电压为6V闭合开关后,电流表A1为0.2A,A2为0.6A,求R2的电阻?R1:R2?

问题描述:

电源电压为6V闭合开关后,电流表A1为0.2A,A2为0.6A,求R2的电阻?R1:R2?

R=U/I
R2=6/0.6
R2=10欧姆
R1:R2=I2:I1
R1:R2=0.6:0.2
R1:R2=3:1