If 'F' is Faraday and 'N' is Avogadro number, then charge of electron can be expressed as -

Options

A. `FxxN`
B. `(F)/(N)`
C. `(N)/(F)`
D. `F^(2)N`

Explanation

To find the charge of an electron in terms of Faraday's constant (F) and Avogadro's number (N), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Constants**:
- Faraday's constant (F) is the amount of electric charge per mole of electrons. Its approximate value is 96485 C/mol.
- Avogadro's number (N) is the number of particles (atoms, molecules, etc.) in one mole, which is approximately \(6.022 \times 10^{23}\) mol\(^{-1}\).

2. **Relationship Between Constants**:
- The relationship between Faraday's constant, Avogadro's number, and the charge of an electron (e) can be expressed as:
\[ F = N \times e \]
- Here, \(e\) is the charge of a single electron.

3. **Rearranging the Equation**:
- To find the charge of an electron, we can rearrange the equation:
\[ e = \frac{F}{N} \]

4. **Substituting Known Values**:
- We know that:
- \(F \approx 96485 \, \text{C/mol}\)
- \(N \approx 6.022 \times 10^{23} \, \text{mol}^{-1}\)
- Substituting these values into the equation gives:
\[ e = \frac{96485 \, \text{C/mol}}{6.022 \times 10^{23} \, \text{mol}^{-1}} \]

5. **Calculating the Charge of an Electron**:
- Performing the calculation:
\[ e \approx 1.602 \times 10^{-19} \, \text{C} \]

### Final Answer:
The charge of an electron can be expressed as:
\[ e = \frac{F}{N} \]