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Is the phone that cathode copper place uses dc or alternating current?
From;  Author:Stand originally
The phone that cathode copper uses is dc, it is to use rectifier to will communicate rectification to be used into dc.

Of copper electroanalysis process: Make blister copper beforehand thick board as positive pole, pure copper makes chip make negative electrode, with vitriolic (H2SO4) and bluestone (CuSO4) solution serves as electrolyte. After electrify, copper dissolves from positive pole, with ionic condition (Cu2) moves to cathode, the electron is obtained after arriving at cathode and be in the copper with taller purity of cathode separate out -- cathode copper