如图是兴趣小组“探究串联电路电流特点”的实验电路图。                                                                                                                                                                                                          

实验序号	电流表的位置	A	B	C
1	电流I/A	0.3	0.3	0.3
2	电流I/A	0.4	0.4	0.4
3	电流I/A	0.2	0.2	0.2