一个电压表与灯l1并联只能并联在同一个电阻上只测这个电阻？ 而不能同时并联在2个电阻上测他们的电阻和？这样恒成立

来源：蜘蛛抓取(WebSpider) 时间：2012-02-11 14:48 标签： 电压表与灯l1并联
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/etc/nginx/nginx.conf.某电路里一只电压表并联在2欧的定值电阻上,电压表读数为7.2V,能不能用量程为3A的电流表来测量这电阻的电流_百度知道The page is temporarily unavailable
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1.75亿学生的选择
串联电路中如果将电压表并联在两个电阻上,它测的是哪一个这种情况下,它测的是哪两个电阻
是测R1,R2的电压.也就是电阻R1,R2的电压和.
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其他类似问题
测的是R1 R2两个电阻串联所分得的电压
r2和 r1 上的电压啊
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1.75亿学生的选择
电压表可以同时测两个用电器吗？为甚莫？如果与电压表并联的有两路，一路上有一个电阻，一路上有两个灯泡，那测哪个/
兄弟 测的两个点的电压有且只有一个值所以它只是测的这两个点之间的电势当然 你说的那个 因为那两路是并联 所以电压表测的既是一个电阻的电压也是2个灯泡串联后的电压. 当然 这两个值是相等的
为您推荐：
能测两个用电器的总电压```
那样做会破坏两个电路的原来的参数,相当于将电阻和灯泡并联在一起了
我要说的是电压表测的是2个点的电压,一个电阻和俩个灯泡的2端全接在电压表所在的点上,所以电压表测的既是一个电阻的电压也是2个灯泡串联后的电压.
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