电源在电路中起什么作用?

电路知识小测验

Quiz
•
Physics
•
4th Grade
•
Easy
Mavis Liu
Used 5+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
提供能量
连接导线
控制开关
消耗电能
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
导线的主要功能是什么?
提供能量
连接各个部分
控制电流
消耗电能
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
电流通过用电器时会发生什么?
电源会断电
导线会断开
电流会消失
用电器会工作
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
串联电路的特点是什么?
用电器可以独立工作
电流不会流动
电流只有一条路
电流可以分开
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果串联电路中的一个用电器坏了,会发生什么?
电流会加速
电源会停止工作
电流会变强
其他用电器也不能工作
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
并联电路的特点是什么?
有多条不同的路
只有一条路
用电器都连接在一起
电流不会流动
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在并联电路中,如果一个支路的用电器坏了,其他支路会怎样?
不受影响
全部停止工作
电流会变强
电源会断电
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