很简单了!并联情况下,总电阻=0.5+1/(1/6+1/4)=0.5+2.4=2.9欧姆,电流=4.5/2.9=1.55A,路端电压=2.4*1.55=3.72V
串联情况下,总电阻=0.5+4+6=10.5,电流=4.5/10.5=0.429A,路端电压=10*0.429=4.29V
很简单了!并联情况下,总电阻=0.5+1/(1/6+1/4)=0.5+2.4=2.9欧姆,电流=4.5/2.9=1.55A,路端电压=2.4*1.55=3.72V
串联情况下,总电阻=0.5+4+6=10.5,电流=4.5/10.5=0.429A,路端电压=10*0.429=4.29V