题目内容
如右图所示,电压表和电流表的读数分别为10 V和0.1 A,电压表内阻为500 Ω,那么待测电阻R的测量值比真实值__________,测量值为_________Ω,真实值为_________Ω。![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241303051241397.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241303051241397.png)
小,100,125
如右图所示,电流表外接,所测电压为真实值,电流表示数偏大,根据
,可知待测电阻R的测量值比真实值偏小,测量值为
,真实值为![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241303052341240.png)
故答案为:小 ,100 ,125
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130305156519.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824130305202857.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241303052341240.png)
故答案为:小 ,100 ,125
![](http://thumb2018.1010pic.com/images/loading.gif)
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