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Potential difference.

Like the plus and minus on batteries...

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16y ago

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Does current need free electrons for it to flow?

yes it need ion to flow


Which instrument do you use to measure the flow of current in a circuit?

To measure current you will need an ammeter.


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One disadvantage of a insulator is that it will not let current flow if you need it to. By the same token one advantage of an insulator is that it will not let current flow if it tries to.


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A Counter-current flow has more advantages as comapared to a co-current flow.


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No it is not possible to flow current wireless.


Voltage is pressure and current is flow what opposes flow?

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