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electrochemical cells

I'm a bit confused, in an electrochemical cell we have an external wire connected to a voltmeter in series. We say that the electrons flow from the anode to the cathode via this wire.

But if we have a voltmeter that essentially has an infinite resistance, then there can't be a flow of electrons between the two electrodes.

Is it not the flow of the ions in the salt bridge that causes the 'flow of charge' overall?
Original post by BDunlop
I'm a bit confused, in an electrochemical cell we have an external wire connected to a voltmeter in series. We say that the electrons flow from the anode to the cathode via this wire.

But if we have a voltmeter that essentially has an infinite resistance, then there can't be a flow of electrons between the two electrodes.

Is it not the flow of the ions in the salt bridge that causes the 'flow of charge' overall?


Voltage is not flow of electrons, it is the push that the electrons experience, i.e. the force they feel - the electromotive force.

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