D. To change the direction of the current. 相关知识点: 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。
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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...
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 ...
Electrical Circuit Definition: An electrical circuit is a closed loop made up of components like batteries and resistors that allow electric current to flow. Component Function: The main roles of electrical circuit components include delivering power, controlling and regulating flow, and protecting agains...
An open circuit refers to a break or interruption in an electrical circuit. In a closed circuit, electrical current can flow freely from the power source to the load, allowing devices to function properly. However, when a circuit becomes open, the flow of electricity is disrupted, and the ...
Open Circuit The opposite of a short circuit is anopen circuit. This is a circuit where the loop isn't fully connected (and therefore this isn't really a circuit at all). Unlike the short circuit above, nothing will get hurt by this "circuit", but your circuit won't work either. If...
GND full form is ground. it is very commonly used in electrical engineering as a basic concept. It works as a reference point of voltage in circuits and protects the circuit and the person working the circuit. It is a common return path of current to a p
In electrical circuit theory, a port is a pair of terminals connecting an electrical network or circuit to an external circuit, as a point of entry or exit for electrical energy. A port consists of …
b) A dead circuitc) A closed circuitd) Ashort circuit 相关知识点: 试题来源: 解析 1.什么电路模式造成保险丝熔断?(d) a) 闭合电路 b)支线电路(旁路) c)断路 d)短路 2.60 赫兹代表什么?(b) a)每秒6000周期 b)每秒60周期 c)每秒6000米 d)每秒60米 3.对人体健康会造成伤害的最小...