Two voltmeters, one of copper and another of silver, are joined in parallel. When a total charge $q$ flows through the voltmeters, equal amount of metals are deposited. If the electrochemical equivalents of copper and silver are ${Z_1}$ and ${Z_2}$ respectively the charge which flows through the silver voltmeter is

Question

${q \over {1 + {{{Z_2}} \over {{Z_1}}}}}$

${q \over {1 + {{{Z_1}} \over {{Z_2}}}}}$

$q{{{Z_2}} \over {{Z_1}}}$

$q{{{Z_1}} \over {{Z_2}}}$

Solution

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