why are ends of copper wire rubbed with sand paper before applying them in circuit
Answers
Answered by
13
when the copper is kept in open it reacts with the oxygen present in the air to form a thin layer of CuO therefore we have to clean it with snadpaper before using it
Answered by
12
when copper is kept in open it reacts with the oxygen present in air to form a thin layer of CuO. Therefore we have to clean it with sandpaper before using it.
Similar questions