Calculate the drift speed of the electrons when 1A of current exists in a copper wire of cross section 2 `mm^(2)`.The number of free electrons in `1cm^(3)`of copper is `8.5xx10^(22)`.

Explanation

To calculate the drift speed of the electrons in a copper wire when a current of 1 A flows through it, we can follow these steps:

### Step 1: Identify the given data
- Current (I) = 1 A
- Cross-sectional area (A) = 2 mm²
- Number of free electrons per unit volume (n) = 8.5 x 10²² electrons/cm³

### Step 2: Convert units to SI
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