An electric-current meter intended to be installed on an electrical panel is composed of a plurality of electrical appliances, each of which delivers to a load, via electrical power cables, an electric current, the strength of which may be measured by the said electric-current meter, each ...
Electric current is the amount of electric charge passing through a given surface or given point per unit of time. The S.I unit of current is the... Learn more about this topic: Standard Units of Measurement | Overview & Examples
Ohm's law gives a formula for determining the current that will flow through a conductor: I−VR where V is the voltage, or electrical potential difference, measured in volts, and R is the electrical resistance to the current flow, measured in ...
While AC Current is good for transmission over long distance, DC current is good for digital electronics. So, Electric current is of two types: Direct Current (DC) Alternative Current (AC) Table of Contents: Direct Current: (DC) In this type of electric current, direction is always same. ...
参考译文 5.1 半导体二极管 我们知道，某些材料（导体）很容易导电，而另一些材料（绝缘体）则不易导电。介于两种极端情况之间是另一些既不是好的导体也不是好的绝缘体的材料，象硅、锗那样的材料有介于导体和绝缘体之间的特性。硅和锗是种电特性容易在制造过程中被改变的晶体材料。被称为杂质的元素被加入纯的硅...
Overcurrent trip unit for an electrical installati 优质文献 相似文献APPARATUS COMPRISING CIRCUIT BREAKER WITH ADJUNCT SENSOR UNIT not available for EP185178of corresponding document:A self-contained current sensor unit is integrated with a standard circuit breaker as an attachment to the circuit breaker...
electronic[,ilek'trɔnik]electronics[,ilek'trɔniks]component[kəm'pəunənt]symbolresistor ['simbəl][ri'zistə]adj.电子的,电子仪器的 n.电子学，电学，电子工业n.成分，元件adj.组成的，构成的n.符号，标志，象征n.电阻器 NewWords restrict[ri'strikt]vt.限制,约束,限定 current['k...
An electrical device for interrupting passage of a current. A similar electrical device to a circuit breaker for interrupting the passage of a current in a conductor by means of a relay whose triggering time varies depending on the energy carried by an overcurrent. The device comprises a current...
•Resistorsareusedtolimitcurrentflowingtoadevice,therebypreventingitfromburningout,asvoltagedividerstoreducevoltageforothercircuits,astransistorbiasingcircuits,andtoserveascircuitloads.•Generally,resistors(Fig2.1)consistofcarboncomposition,wire-wound,andmetalfilm.Thesizeofresistorsdependsonpowerratings.Largersizes...
Electric Current and Circuit Diagram Elements The schematic diagram represents the different components of a circuit; this is the circuit diagram. These symbols represent the common electrical components. Solved Example For You Q. A current of 0.75 A is drawn by the filament of an electric bulb ...