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Solder is used to create a conductive bond between electronic components.

In other words, it allows electricity to flow between different things.

On a circuit board, it bonds the electronic components (such as resistors, chips, capacitors, etc) to the various metal paths that are on the board. Once soldered, the electricity can flow through the components, through the solder, and across the metal pathways.

Solder is usually 60% lead and 40% tin. It melts at a relatively low temperature and can be added or removed with a soldering iron.

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16y ago

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