Question

name a device that helps to maintain a potential differences across a conductor .​

Answer 1

HEYA MATE❤

⏬ANSWER⏬

➡ A source of electricity such as cell, battery , power sup,etc . helps to main a potential differences across a conductor.

★ Robert hook discovered cell in the year 1665 .

✌Hope it's help you✌

Answer 2

Explanation:

Answer: A battery consisting of one or more electric cells is used to maintain a potential difference across a conductor.