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in this video i will gonna show you how to make a voltaic cell this is a copper rod and
this is a magnesium ribbon this is copper sulphate solution and this is magnesium sulphate
solution i will put this copper rod into copper sulphate solution and the magnesium ribbon
in the magnesium sulphate solution and this is a salt bridge it is a filter paper soaked
with a salt nacl, kcl or whatever so i dip this into these two solutions and when i dip
them electricity flows from the magnesium looses two electrons and these electrons flow
from here here and these copper gains that two electrons and the copper deposits on this
rod so when i put both the electrodes you can see deflection there and this is how voltaic
cell works it works on the principle of redox reaction