Drift Velocity MagnitudeMediumQuestion 31610
Question
Drift velocity of electrons in a typical copper wire carrying 1 A is approximately:
- ASpeed of light
- B1 m/s
- C0.1 mm/sCorrect
- D1000 m/s
Correct answer
0.1 mm/s
Explanation
Despite fast signal propagation (~c), individual electrons drift slowly — typically ~ 10⁻⁴ to 10⁻³ m/s. The electric field propagates at near light speed.