0.3A(并联电阻为20Ω)
9V(两电阻分压为3V和6V)
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I1=U/R1=6/30=0.2A
I2=U/R2=6/60=0.1A
并联时:I=I1+I2=0.3A
串联时:I=min(I1,I2)=I2=0.1A,U=I·(R1+R2)=9V
0.3A(并联电阻为20Ω)
9V(两电阻分压为3V和6V)
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I1=U/R1=6/30=0.2A
I2=U/R2=6/60=0.1A
并联时:I=I1+I2=0.3A
串联时:I=min(I1,I2)=I2=0.1A,U=I·(R1+R2)=9V