A. To increase the voltage. B. To decrease the current. C. To increase the current. D. To change the direction of the current. 相关知识点: 试题来源: 解析 B。解析:在简单电路中,电阻器的作用是减小电流。电阻器不能增加电压,也不能增加电流,更不能改变电流方向。反馈...
The electrical circuit can be described as something created whenever electrons flow and then create electricity. Circuits may be defined as any pathway by which electric current flows. Also, whenever electric current passes or flows inside a circuit, different electrical appliances can use them. Wha...
试题来源: 解析 C。解析:保险丝在电路中的主要作用是防止过载。选项 A,保险丝不能增加电压。选项 B,测量电流的是电流表等仪器。选项 D,保险丝不能改变电流方向。阅读时要抓住“fuse”“electrical circuit”等关键词理解其在电路中的作用。反馈 收藏
A SIMPLE explanation of Electric Circuits. Learn what an electrical circuit is, the properties of an electrical circuit, and the different types of electrical networks. We also discuss how ...
(b) a)30 V b)100 v c)1000 v d)2000 v 4.那种电路电流最大?(c) a) 断路 b) 无电电路 c) 闭合电路 d) 短路 分析总结。 对人体健康会造成伤害的最小电压为多少结果一 题目 1.what type of electrical circuit is created when a fuse blowsa) A closed circuitb)A bypass circuitc...
Electricity is used to power most everything people use today. Computers use electricity, light bulbs use electricity, and even some cars use electricity.Answer and Explanation: An electrical circuit is a path through which electricity flows. This path needs to make room for electricity to enter ...
An electrical circuit is a closed loop with a power source, fuse, load, and switch. There are three types of electrical circuits...
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A series circuit is a type of electrical circuit in which the components are connected end-to-end in a single loop. The same current flows through each element in a series circuit, but the voltage drops across each component can be different. Understanding series circuits is fundamental for an...
A parallel circuit is one of the two basic types of electric circuit that can be found in electrical devices. "Circuit" refers to the total path of an electric current, or flow of electrical energy, and includes devices such as resistors, which control the flow of voltage, or difference ...