name a device that helps to maintain a potential difference across a conductor.
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Answer:
Voltmeter is used to measure potential difference across a conductor.................
A Battery creates potential difference in the whole circuit.......
Explanation:
Voltmeter is connected in parallel with those specific point where the potential difference is to be measured.....
Battery is the main source of Electromotive force (EMF).....
Amount of current given by battery = Amount of current withdrawn by battery....
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A Battery Dude !!!!
A battery consisting of one or more electric cells is used to maintain a potential difference across a conductor.
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