中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.
如图所示电流表的读数为（ ）
| A: 0.46A |
| B: 0.52A |
| C: 2.46A |
| D: 2.60A |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rOo5oSP6YeP56iLPC9wPg==
- 提示2：PHA+5qC55o2u6YeP56iL6K6h566X55S15rWB6KGo6K+75pWwPC9wPg==
- 答案：Qg==
PGRpdj7nlLXmtYHooajmjqXnur/mn7HmjqXlnKgwLjZB5aSE77yM5YiZ6YeP56iL5Li6MH4wLjZB77yM5q+P5LiA5bCP5qC85Luj6KGoMC4wMkE8L2Rpdj4=
本课配套习题挑战模式2/5
单选题
难度系数：
2.如图所示，在练习使用电流表的实验中，某同学发现电流表（0～3A）的量程刻度值标示不清，根据你对电流表的了解，电流表的正确读数是（ ）
| A: 0.42A |
| B: 0.44A |
| C: 2.2A |
| D: 2.4A |
一次做对，真牛！
+5奖励规则>
- 提示1：IOazqOaEj+eUtea1geihqOmHj+eoi++8jOagueaNrumHj+eoi+iuoeeul+eUtea1geihqOivu+aVsA==
- 答案：Qw==
PGRpdj7nlLXmtYHooajmjqXnur/mn7HmjqXlnKgzQeWkhO+8jOWImemHj+eoi+S4ujB+M0HvvIzmr4/kuIDlsI/moLzku6PooagwLjFBPC9kaXY+
本课配套习题挑战模式3/5
单选题
难度系数：
3.
某同学用电流表测量电流时，用了如图所示的两个接线柱，则下列叙述正确的是（ ）
| A: 电流表的量程为0.6A～3A |
| B: 电流表的量程为0～3A |
| C: 电流表的量程为0～0.6A |
| D: 不能用来测量电流，谈不上量 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rOo5oSP55S15rWB6KGo55qE5o6l57q/5p+x55qE5L2N572uPGJyPjwvcD4=
- 答案：Qw==
PGRpdj7mraPmnoHmjqXnur/mn7HmjqXlnKgwLjbkuIrvvIzliJnph4/nqIvkuLowfjAuNkE8L2Rpdj4=
本课配套习题挑战模式4/5
单选题
难度系数：
4.把一个电流表接入某电路中，用“-”和“0.6”两个接线柱，某同学读数时，看错量程，错读成1.2A，则正确的读数是（ ）
| A: 0.2A |
| B: 0.24A |
| C: 0.32A |
| D: 0.34A |
一次做对，真牛！
+5奖励规则>
- 提示1：IOmHj+eoi+aJgOS7o+ihqOeahOWIhuW6puWAvOaYr+S4gOWumueahO+8jOagueaNruWvueeahOmHj+eoi+aNoueul+WwseWPr+S7peiuoeeul+WHuuato+ehrueahOivu+aVsA==
- 答案：Qg==
PGRpdj4xLjJB5a+55bqU55qE5pivMH4zQeeahOmHj+eoi++8jDNB55qE6YeP56iL5q+P5bCP5qC85Luj6KGoMC4xQe+8jDB+MC42QemHj+eoi+WvueW6lOeahOavj+Wwj+agvOivu+aVsOS4ujAuMDJB77yM5YiZ5aSn6YeP56iL5q+P5LiA5bCP5qC85piv5bCP6YeP56iL5q+P5LiA5bCP5qC855qENeWAje+8jOacgOe7iOaxguW+l+ivu+aVsOW6lOS4ujAuMjRBPC9kaXY+
本课配套习题挑战模式5/5
单选题
难度系数：
5.
如果通过导线横截面的电量是540C，电流为0.9A，则通电时间为（ ）
| A: 486s |
| B: 60s |
| C: 10min |
| D: 无法确定 |
一次做对，真牛！
+5奖励规则>
- 提示1：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
- 答案：Qw==
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