题目内容
R1=5Ω,R2=10Ω,串联后接到6V的电源上,则R1两端的电压U1为______V,R2两端的电压U2为______V,U1:U2=______.
U1:U2=R1:R2=5:10=1:2;
则U1=
U=
×6V=2V,U2=
U=
×6V=4V;
故答案为:2V,4V,1:2
则U1=
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故答案为:2V,4V,1:2
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