Question

Здравствуйте!!! ПОМОГИТЕ СРОЧНО!! ЗНАТОК ПОМОГИ!!! Почему проволока предохранителей сделана из свинца? Что будет, если она сделана из цезия или меди?​

Answer 1

Ответ:

Свинец достаточно хорошо проводит электричество , и к тому же он достаточно прочный . Если заменить его медью то почти нечего не измениться кроме прочности конечно .

Цезий как мы знаем это самый активный металл , и при контакте с воздухом он просто загорится .

Объяснение:

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Answer 2

The Composition of Fuse Wire

Fuse wire, also known as a fuse element or fuse link, is a component used in electrical circuits to protect against excessive current flow. It is designed to melt and break the circuit when the current exceeds a certain threshold, thus preventing damage to the circuit or electrical equipment.

Traditionally, fuse wire has been made from materials with low melting points, such as lead (Pb) or tin (Sn). These materials have properties that make them suitable for use as fuse wire:

1. Low Melting Point: Lead and tin have relatively low melting points, which allows them to melt quickly when the current exceeds the rated value. This rapid melting helps to break the circuit and prevent further damage.

2. Good Conductivity: Lead and tin are both good conductors of electricity. This ensures that the fuse wire does not introduce significant resistance into the circuit, which could affect the overall performance of the electrical system.

3. Availability and Cost: Lead and tin are readily available and relatively inexpensive compared to other metals. This makes them practical choices for mass production of fuse wire.

Alternative Materials

While lead and tin are commonly used for fuse wire, other materials like cesium (Cs) or copper (Cu) could also be used. However, there are certain considerations to keep in mind:

1. Cesium (Cs): Cesium has a very low melting point, even lower than lead or tin. However, cesium is a highly reactive metal and can react violently with air or water. This reactivity makes it unsuitable for use in fuse wire, as it could pose safety risks.

2. Copper (Cu): Copper is an excellent conductor of electricity and has a higher melting point than lead or tin. However, copper is more expensive and less readily available compared to lead or tin. Using copper as fuse wire would increase the cost of production and may not be economically viable for mass production.

In conclusion, fuse wire is typically made from lead or tin due to their low melting points, good conductivity, availability, and cost-effectiveness. Using alternative materials like cesium or copper may not be practical due to safety concerns or cost considerations.

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