用如图甲所示的电路来测量电池的电动势和内阻，根据测得的电表数据作出了如图乙所示的U﹣I图线，下列说法正确的是

题干

用如图甲所示的电路来测量电池的电动势和内阻，根据测得的电表数据作出了如图乙所示的U﹣I图线，下列说法正确的是（）

A：由图象得外电路发生短路时的电流为0.4A

B：由图象得电池内阻为3.5Ω

C：若考虑电表的内阻，用该电路图测出的电源电动势等于真实值

D：若考虑电表的内阻，用该电路图测出的电源内阻小于真实值

上一题下一题 0.0难度选择题更新时间:2012-04-06 01:46:04

D

Situations	Differences
Situations	Britons (英国人)	Americans
When being knocked into	They will say “sorry” before the other does.	They will ____ the person and expect him to say “sorry”.
When going out for dinner	They will ____ when going out for dinner.	They may wear a normal shirt to go to a good____.
When taking a taxi	They will give an address to the taxi driver and then ____.	They will ____ the taxi driver all the time.