The estimated electron drift velocity for the copper wire which carries a tiny current of 2.8 μA is 659.88 m/s
How to calculate the estimated electron drift velocity?
The estimated electron drift velocity for the copper wire can be calculated as follow:
First, we shall obtain the area of the copper wire. Details below:
- Diameter of wire (d) = 0.63 mm = 0.63 / 1000 = 0.00063 m
- Radius of wire (r) = d / 2 = 0.00063 / 2 = 0.000315 m
- Pi (π) = 3.14
- Area of wire (A) =?
A = πr²
= 3.14 × (0.000315)²
= 3.12×10⁻⁷ m²
Using the area of the wire obtained above, we can calculate the the electron drift velocity. Details below:
- Area of wire (A) = 3.12×10⁻⁷ m²
- Current (I) = 2.8 μA = 2.8×10⁻⁶ A
- Number of Charge per volume for copper wire (n) = 8.5×10²⁸ electrons/m³
- Charge of electron (q) = 1.6×10⁻¹⁹ C
- Electron drift velocity (v) =?
