There is a conducting wire of length l and radius of cross section r. The number of free electrons per unit volume of the conductor is n and the mobility of electrons is `mu`. A battery of potential difference V is connected across its length. Find electric current flowing through the wire. Assume e as the magnitude of charge on electron.

Explanation

To find the electric current flowing through the conducting wire, we can follow these steps:

### Step 1: Understand the relationship between current, charge, and time
The electric current \( I \) is defined as the charge \( Q \) flowing through a cross-section of the wire per unit time \( t \):
\[ I = \frac{Q}{t} \]

...