Construction and Working of Voltaic cell
Construction and Working of Voltaic cell
Points : Construction and Working of Voltaic cell, Flow of Current
Construction
Voltaic cell is consists of glass vessel filled by sulphuric acid with in which a zinc and a copper strip is placed. Two strips are
linked by a conducing wire. Zinc plate has negative charge call cathode and copper plate has positive charge called anode.
Working
While Zinc strip placed in acid solution it is attach by the acid and begin to dissolve Zinc atoms enter in the solution as Zn+2 ion and free two electrons on the strip.
Zn ? Zn-2 + 2e-
Sulphuric acid ionize as follows
H2 SO4 ? 2H + S04
Hydrogen positive ions gain electrons from copper strip as a result hydrogen becomes neutral and copper strip becomes positive.
Flow of Current
When negatively charged Zinc strip is connected to a positively charged Copper strip by means of a conducting wire, current start to flow from Zinc negative to copper positive.
No comments:
Post a Comment
Dont paste link here..