图14所示的是_____________实验的装置,它可以用来测定__________________;

14所示的是_____________实验的装置,它可以用来测定__________________15所示测量工具的名称为__________,如用它来进行测量,须将它的“___”接线柱(选填“”、“5”或“15”)应与被测导体靠近电源负极的一端相连。

答案

⑴ 托里拆利   大气压值   ⑶ 电压表;  

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