Faraday's laws of electrolysis - First Law | Verification of Faraday’s laws of electrolysis | Tamil

Faraday's laws of electrolysis - First Law | Verification of Faraday’s laws of electrolysis | Tamil
The mass of a substance liberated at an electrode is directly proportional to the charge passing through the electrolyte.
A battery, a rheostat, a key and an ammeter are connected in series to an electrolytic cell. The cathode is cleaned, dried, weighed and then inserted in the cell. A current I1 is passed for a time t. The current is measured by the ammeter. The cathode is taken out, washed, dried and weighed again.