A current of 1.34A exists in a copper wire of cross-section `1.0mm^(2)`. Assuming eac copper atom contributes one free eectron. Calculate the drift speed of the free electrons in the wire. The density of copper is 8990 `kg// m^(3)` and atom ic mass=63.50.

Explanation

To calculate the drift speed of the free electrons in a copper wire, we can follow these steps:

### Step 1: Convert the given values to standard units
- Current (I) = 1.34 A
- Cross-sectional area (A) = 1.0 mm² = \(1.0 \times 10^{-6} \, \text{m}^2\)
- Density of copper (\( \rho \)) = 8990 kg/m³
- Atomic mass of copper = 63.50 g/mol = 0.0635 kg/mol

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