Answer:
Drift velocity of conduction electrons in Gold = 8.73 × 10⁻⁶ m/s = 8.73 μm/s
Explanation:
Drift velocity, v, is given by
v = I/(nAq)
where v = drift velocity
I = current in the wire
n = number of electrons per cubic metre for the wire
A = Cross sectional Area of the wire
q = charge on one electron
I = 0.373 A
A = πD²/4 = π(0.0024)²/4 = 4.52 × 10⁻⁶ m²
q = 1.602 × 10⁻¹⁹ C
n = 5.90 × 10²⁸ electrons/m³
v = 0.373/(5.90 × 10²⁸ × 4.52 × 10⁻⁶ × 1.602 × 10⁻¹⁹) = 8.73 × 10⁻⁶ m/s
