why we want to clean the copper plate with sand paper not any other paper before testing the circuit
anyone answer
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Answered by
2
Answer:
Many metals react with oxygen in the presence of air and form a thin oxide coating on the surface of the metal. By cleaning the metal strip with a sand paper, the oxide coating is removed. Other paper could not remove the oxide coating.
Answered by
5
Answer:
Many metals react with oxygen in the
presence of air and form a thin oxide
coating on the surface of the metal.
By cleaning the metal strip with a sand
paper , the oxide coating is removed .
Other paper could not remove the oxide
coating.
hope it helps you ☺️
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