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Q.

Which alloy is used for soldering of electric wire?


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a

Copper + Zinc

b

Aluminum + Magnesium

c

Lead + Tin

d

Copper + Tin 

answer is C.

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Detailed Solution

Concept: The alloy used for this soldering is called solder. Therefore, we must ascertain the solder's composition. The metals must be strong and have the right electrical characteristics. A fusible metal alloy called solder is used to permanently join metal work components together. After cooling, the components are connected and adhered to using molten solder.
The alloy's solderable component must have a lower melting point than the components it is being used to unite. The junction must also be covered by the solder so that it can survive corrosive and oxidative effects over time. The solder used to connect electrical devices must also possess good electrical properties.
Lead is affordable and possesses all the ideal qualities required for soldering. Tin is often the alloy's primary structural metal. Both its strength and wetness are good. As a result, they make up the majority of solder's components, with only a little amount of other elements.
Therefore, we can say that the electric lines are soldered using lead and tin.
Hence, the correct answer is option (3).
 
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