挑战习题
1/5多选题
难度:

1.

在伏安法测电阻中要注意哪些事项


A

连线时,开关断开

B

闭合开关前,注意把滑变调到阻值最大的地方

C

电压表和电流表量程尽量选择大一些.

D

多次测量取平均值

提示1:
PHA+5YGa5aW95rWL6YeP5YmN55qE5YeG5aSH5bel5L2cPC9wPg==
提示2:
PHA+5Li65LqG5rWL6YeP57K+5YeG6KaB5aSa5rWL6YeP5Yeg5qyhLjwvcD4=
提示3:
PHA+6YCJ5oup5ZCI6YCC6YeP56iLPC9wPg==
正确答案:QSxCLEQ=
PGRpdj7lnKjlgZrmtYvph4/kuYvliY3lgZrlpb3liY3mnJ/lh4blpIcs5byA5YWz5pat5byALOa7keWKqOWPmOmYu+WZqOa7keWIsOacgOWkp+WkhC7pl63lkIjlvIDlhbPlkI4s6YCJ5oup5ZCI6YCC55qE55S15Y6L6KGo5ZKM55S15rWB6KGoLOivleinpi7mlLnlj5jmu5HniYdw55qE5L2N572uLOWkmua1i+mHj+WHoOasoemAieaLqeW5s+Wdh+WAvC48L2Rpdj4=