Question

Potential difference across a cell may be:
1. Greater than it's emf
2. Less than it's emf
3.Equal to its emf
4. All of these ​

Answer 1

hyy mate ✌️

The potential difference across the terminals of a cell is called the terminal voltage. Terminal voltage= the actual potential difference across the terminals of the supply when a current is being supplied.

hope it will help you ❣️❣️

Answer 2

The potential difference  across a cell may be:

(3) Equal to its emf

- Electromotive Force (emf) is the maximum potential difference between the terminals of a cell when there is no current flowing inside it.

- As soon as a current starts to flow, the potential difference in the cell decreases.

- Hence, the p.d. may be equal to the emf but cannot exceed it.