Why is the voltmeter connected in series in electrolysis?

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    Electrolysis Voltmeter
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SUMMARY

In electrolysis involving a galvanic cell, the voltmeter is connected in series to measure the voltage across the external circuit accurately. This configuration allows for the measurement of the potential difference generated by the flow of electrons from the more reactive metal to the less reactive metal. Despite the voltmeter's high resistance, connecting it in series does not significantly affect the overall current flow, ensuring accurate voltage readings during the electrolysis process.

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lokifenrir96
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Hi guys,

I was wondering, in the process of electrolysis when we are looking at a galvanic CELL, meaning a battery, why is it that when we want to measure the voltage caused by using the two metals of different elements, we connect the voltmeter in series to the external circuit?

If you don't really know what I'm talking about, just imagine a galvanic cell: 2 half cells, 2 different elemental metals dipped in solution in both half cells. Electrons flow from more reactive (more lilely to undergo oxidation) to less reactive, through the external circuit. Why is the voltmeter connected in series to the external circuit?

I thought voltmeters have infinitely high resistance? Wouldn't this affect the flow of electrons?

Thank you!
 
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