AB间电阻是总电阻R总
R1与R0串联再与R1并联,上面电路视作一个等效电阻再与R1串联
1/(R1+R0)+1/R1=1/R并(根据并联电路各支路电流等于总电流,并联电路电压相等等于总电压,电压约去)
R总=R1+R1(R1+R0)/[(R1+R0)+R1]=R0
解得R1=x=√3R0/3
AB间电阻是总电阻R总
R1与R0串联再与R1并联,上面电路视作一个等效电阻再与R1串联
1/(R1+R0)+1/R1=1/R并(根据并联电路各支路电流等于总电流,并联电路电压相等等于总电压,电压约去)
R总=R1+R1(R1+R0)/[(R1+R0)+R1]=R0
解得R1=x=√3R0/3