Potential difference between two terminals of a cell, when there is no currentflowing through it is called …………..of the cell.

Answer

To answer the question, we need to identify the term that describes the potential difference between the terminals of a cell when no current is flowing through it.

### Step-by-Step Solution:

1. **Understanding the Concept**: The potential difference between the terminals of a cell when there is no current flowing is a fundamental concept in electricity. This potential difference is indicative of the energy per unit charge that the cell can provide.

2. **Identifying the Term**: The term used to describe this potential difference is known as the **Electromotive Force (EMF)** of the cell. EMF is defined as the voltage generated by a cell or battery when no current is being drawn from it.

3. **Explanation of EMF**:
- EMF represents the maximum potential difference that can be provided by the cell.
- When the cell is not connected to any circuit (i.e., no current is flowing), the voltage measured across its terminals is equal to the EMF.
- Once the cell is connected to a circuit and current starts to flow, the voltage across the terminals may drop due to internal resistance and other factors.

4. **Conclusion**: Therefore, the potential difference between the two terminals of a cell when there is no current flowing through it is called the **EMF of the cell**.

### Final Answer:
The potential difference between two terminals of a cell, when there is no current flowing through it, is called **EMF of the cell**.