I=(P1/搭睁R1)^1/做枝铅纯好2=0.2A
U1=I*R1=0.2*3=0.6V
P2=UI-P1=3*0.2-0.12=0.48W
A=0.2A UR1=0.6V PR2=0.48W
将电阻R1与R2串联后接到电压为3V的电源上,已知电阻R1=3Ω，且消耗的功率P1=0.12W
I^2*R1=P1I=(P1/搭睁R1)^1/做枝铅纯好2=0.2AU1=I*R1=0.2*3=0.6VP2=UI-P1
I=(P1/搭睁R1)^1/做枝铅纯好2=0.2A
U1=I*R1=0.2*3=0.6V
P2=UI-P1=3*0.2-0.12=0.48W
A=0.2A UR1=0.6V PR2=0.48W
I=(P1/搭睁R1)^1/做枝铅纯好2=0.2A
U1=I*R1=0.2*3=0.6V
P2=UI-P1=3*0.2-0.12=0.48W
A=0.2A UR1=0.6V PR2=0.48W