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。
Any two-pole circuit is guaranteed to meet the port condition by virtue of Kirchhoff's current law and they are therefore single-ports unconditionally. All of the basic electrical elements (inductance, resistance, capacitance, voltage source, current source) are single -ports, as is a general im...
In electrical circuits, power is measured in volts (V), as well as in amperes (A). A volt is the unit of electric potential difference. Another way to explain volt is the force that sends electrons through an electrical circuit to establish an electric current that's measured in amperes. ...
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
Although, we have not mentioned the details of each piece of equipment used in an electrical power system. In addition to three main components alternator, transformer, and transmission line there is a number of associated equipment. Some of these pieces of equipment are circuit breaker, lightning...
Modernpowerelectronicdevicemanufacturing regardedasthepowerelectronic 既可放大,也可开关 电子技术mostlyusesintegratedcircuitmanufacturing circuit.Powerelectroniccircuitiswidely Electronic technologyandmicro-electronicmanufacturing Technologyusedintelevision,computerandother technology.Manydevicesarecommonwithmicro- electronicdevi...
: 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 against electrical faults. ...
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:1 An electrical circuit is a path through which electricity flows. This path needs to make room for electricity to ente...
Electrical circuits are composed of atoms that move in a predetermined path. This path is created by a power source and conductors that work together. Circuits are closed systems.Answer and Explanation: Circuit breakers, ground fault interrupters, and fuses are used to slow or completely sto...
In terms of an electric circuit, electrical power is the rate, per unit time, at which electrical energy is transferred by an electric circuit. From the definition it can be seen that: W=VQtW=VQt But as: Qt=Current, IQt=Current, I ...