JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Understanding +4 | -1

A current

I

is passed for a time

t

through a number of voltmeters. If

m

is the mass of a substance deposited on an electrode and

z

is its electrochemical equivalent, then

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Correct option: A

\frac{{zIt}}{m} = \mathrm{constant}

Option A is correct because Faraday's law of electrolysis states that the mass of a substance deposited is directly proportional to the charge passed and the electrochemical equivalent.

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