初中物理学科中的图象问题(三)谜底见文末!
图例3-1
电阻R1的U-I图象如图所示，
R1的阻值是 Ω。
把电阻r1与阻值为30Ω的电阻r2并联在电压是4v的电路中，
通过电阻R1与R2的电流之比是
电阻R1与R2两端电压之比为
图例3-2
某同学用伏安法对四个电阻各测量一次，把每个电阻两端的电压和经由过程他们的电流在u-i坐标系中描点，
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图例3-1
电阻R1的U-I图象如图所示，
R1的阻值是 Ω。
把电阻r1与阻值为30Ω的电阻r2并联在电压是4v的电路中，
通过电阻R1与R2的电流之比是
电阻R1与R2两端电压之比为
图例3-2
某同学用伏安法对四个电阻各测量一次，把每个电阻两端的电压和经由过程他们的电流在u-i坐标系中描点，
本文链接: https://www.yizhekk.com/1238139827.html
