Question

name the device that maintian potential difference across a conductor​

Answer 1

Answer:

Cell or Battery

Explanation:

A cell or a battery is a device that maintains potential difference across a conductor. A battery is nothing but combination of cells. So basically a cell is the device that maintains potential difference across a conductor.

There are many types of cells. Eg. Dry cell, mercury cell, lead battery etc...

Cells mainly produce potential difference by electrolytic reactions in which two electrodes(namely cathode and anode) are introduced into an electrolytic solution. In this solution redox reaction occurs, in which electrons get transferred due to which potential difference develops.

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The only thing weird here is that, this is a physics question rather than a biology question...