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  4. In electrolysis the mass deposited on an electrode is directly proportional to

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Q. In electrolysis the mass deposited on an electrode is directly proportional to

BHUBHU 2007Electromagnetic Induction

Solution:

In electrolysis according to first law of Faraday, the mass of a substance deposited at an electrode is directly proportional to the charge passed through the electrolyte ie,
$m \propto q$
If a current $i$ passes for a time $t$, then as we know
$ q=i t $
Hence, $ m \propto i t $
or $m \propto i$
Thus, mass deposited at an electrode is directly proportional to current.