电源的电动势为3.0V,内阻r=0.35Ω,外电路电阻R=1.65Ω,求电路中电流I\路端电压U和短路电流I'.

电源的电动势为3.0V,内阻r=0.35Ω,外电路电阻R=1.65Ω,求电路中电流I\路端电压U和短路电流I'.
电源的电动势为3.0V,内阻r=0.35Ω,外电路电阻R=1.65Ω,求电路中电流I\路端电压U和短路电流I'.

电源的电动势为3.0V,内阻r=0.35Ω,外电路电阻R=1.65Ω,求电路中电流I\路端电压U和短路电流I'.
I=E/(R+r)=3.0/(0.65+0.35)=1.5A
路端电压U=IR=1.5*1.65=2.475V
短路电流I'=E/r=3.0/0.35=8.57A

I=E/(R+r)=1.5A
U=RI=1.65*1.5=2.475v
I=E/r=8.57A