Question

Describe how a potentiometer is used to compare the EMFs of two cells by connecting the cells separately​

Answer 1

Answer:

Solution 1. A battery of stable emf E is used to set up a potential gradient V/L along a potentiometer wire, where V ≡ potential difference across the length L of the wire. The positive terminals of the cells, whose em. ... The negative terminals of the cells are connected to a galvanometer G through a two-way key.

Explanation:

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